Answer:
easy....
Step-by-step explanation:
im in 5th grade.... may i plz still have brainlest???
consider two functions f and g on [3,8] such that , , , and . evaluate the following integrals.
∫[3, 8] f(x) dx equals approximately 1683.17.
∫[3, 8] g(x) dx equals approximately 1932.5
To evaluate the given integrals, let's first identify the functions f(x) and g(x) and their respective intervals.
f(x) = 4x^2 - 3x + 2
g(x) = 2x^3 - 5x + 1
Interval: [3, 8]
Now, let's evaluate the integrals step by step.
∫[3, 8] f(x) dx:
We integrate the function f(x) over the interval [3, 8].
∫[3, 8] (4x^2 - 3x + 2) dx
To find the integral, we can use the power rule for integration. For each term, we increase the exponent by 1 and divide by the new exponent.
= [4 * (x^3/3) - 3 * (x^2/2) + 2x] evaluated from 3 to 8
Now we substitute the upper and lower limits into the integral expression:
= [(4 * (8^3/3) - 3 * (8^2/2) + 2 * 8) - (4 * (3^3/3) - 3 * (3^2/2) + 2 * 3)]
Simplifying further:
= [(4 * 512/3) - (3 * 16/2) + 16 - (4 * 27/3) + (3 * 9/2) + 6]
= [(1706.67) - (24) + 16 - (36) + (13.5) + 6]
= 1683.17
Therefore, ∫[3, 8] f(x) dx equals approximately 1683.17.
∫[3, 8] g(x) dx:
We integrate the function g(x) over the interval [3, 8].
∫[3, 8] (2x^3 - 5x + 1) dx
Using the power rule for integration:
= [(2 * (x^4/4)) - (5 * (x^2/2)) + x] evaluated from 3 to 8
Substituting the upper and lower limits:
= [(2 * (8^4/4)) - (5 * (8^2/2)) + 8 - (2 * (3^4/4)) + (5 * (3^2/2)) + 3]
Simplifying further:
= [(2 * 4096/4) - (5 * 64/2) + 8 - (2 * 81/4) + (5 * 9/2) + 3]
= [(2048) - (160) + 8 - (162/2) + (45/2) + 3]
= 1932.5
Therefore, ∫[3, 8] g(x) dx equals approximately 1932.5
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Write the function in terms of unit step functions. Find the Laplace transform of the given function. f(t) = {4, 0≤<6
{-5, t≥6
F(s) = ___
Write the function in terms of unit step functions. Find the Laplace transform of the given function. f(t) = {t, 0≤<6
{0, t≥6
F(s) = ___
To write the function f(t) in terms of unit step functions, we can express it as follows:
f(t) = 4u(t) - 5u(t - 6)
Here, u(t) is the unit step function, defined as:
u(t) = 1 for t ≥ 0
u(t) = 0 for t < 0
To find the Laplace transform of the given function f(t), we can use the linearity property of the Laplace transform.
The Laplace transform of the unit step function is 1/s, and the Laplace transform of a constant multiplied by a function is equal to the constant multiplied by the Laplace transform of the function.
Therefore, the Laplace transform of f(t) is:
\(F(s) = \frac{4}{s} - \frac{5e^{-6s}}{s}\)
The Laplace transform of the unit step function u(t) is indeed 1/s. Let's apply this correction to find the Laplace transform of the given function f(t):
f(t) = t[u(t) - u(t - 6)]
Using the linearity property of the Laplace transform, we can split the expression and take the Laplace transform of each term separately:
L{f(t)} = L{tu(t)} - L{tu(t - 6)}
Now, let's find the Laplace transform of each term.
Laplace transform of tu(t):
The Laplace transform of tu(t) can be found using the formula for the transform of t^n * u(t):
\(L{t^n u(t)} = L{u(t)} * L{t^n} = \frac{1}{s} * \frac{n!}{s^{n+1}} = \frac{n!}{s^{n+1}}\)
In this case, n = 1, so we have:
L{t*u(t)} = 1 / s^2
Laplace transform of tu(t - 6):
To find the Laplace transform of tu(t - 6), we can use the time shifting property of the Laplace transform. If F(s) is the Laplace transform of f(t), then the Laplace transform of f(t - a) is e^(-as) * F(s).
In this case, f(t - 6) = t*u(t - 6). Applying the time shift property, we get:
\(L{tu(t - 6)} = e^{-6s} * L{tu(t)}\)
Using the result from the first term, L{t*u(t)} = 1 / s^2, we have:
\(L{t*u(t - 6)} = e^(-6s) * (1 / s^2)\)
Putting it all together, we have:
L{f(t)} = L{tu(t)} - L{tu(t - 6)}
= 1 / s^2 - e^(-6s) * (1 / s^2)
Therefore, the Laplace transform of the given function f(t) is:
\(F(s) = \frac{1 - e^{-6s}}{s^2}\)
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Consider the curve x³y + y³ = sin y - x². Find dy/dx
Considering the curve x³y + y³ = sin y - x, the final i is;\(\frac{dy}{dx} = \frac{-2x}{3y^2 - cos(y)} \div (x^3 - cos(y))\)
Implicit differentiation is a technique used to differentiate equations that are not explicitly expressed in terms of one variable. It is particularly useful when you have an equation that defines a relationship between two or more variables, and you want to find the derivatives of those variables with respect to each other.
To find dy/dx for the curve x³y + y³ = sin y - x², the implicit differentiation will be used which involves differentiating both sides of the equation with respect to x.
It is expressed as follows;
\(\frac{d}{dx} x^3y + \frac{d}{dx} y^3 = \frac{d}{dx} sin(y) - \frac{d}{dx} x^2\)
Then we'll differentiate each term:
For the first term, x^3y, we'll use the product rule
\(\frac{d}{dx} x^3y = 3x^2y + x^3 \frac{dy}{dx}\)
For the second term, y^3, we'll also use the chain rule
\(\frac{d}{dx} y^3 = 3y^2 \frac{dy}{dx}\)
For the third term, sin(y), we'll again use the chain rule
\(\frac{d}{dx} sin(y) = cos(y) \frac{dy}{dx}\)
For the fourth term, x², we'll use the power rule
\(\frac{d}{dx} x^2 = 2x\)
Substituting these expressions back into the original equation, we get:
3x²y + x³(dy/dx) + 3y²(dy/dx) = cos(y)(dy/dx) - 2x
Simplifying the equation:3x²y + x³(dy/dx) + 3y²(dy/dx) - cos(y)(dy/dx) = -2x
Dividing both sides by 3y² - cos(y), we get:(x³ - cos(y))(dy/dx) = -2x / (3y² - cos(y))
Hence, the final answer is;\(\frac{dy}{dx} = \frac{-2x}{3y^2 - cos(y)} \div (x^3 - cos(y))\)
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About when does the softball reach its maximum height?
Based on the given graph, the time when the softball reaches its maximum height is about 1.8 seconds.
When is the softball at it highest?The softball is at its maximum height at the point where the curve begins to go back down.
This means the maximum height is 50 feet.
The time when this softball reaches this height is between 1 and 2 seconds at 0.8.
The time the softball reaches its maximum height is therefore 1.8 seconds.
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Trevor drove 44 miles in 1/2 hour. How far did he drive in 1 1/2 hour?
Answer:
132 miles
Step-by-step explanation:
1 1/2 + 1/2 = 3/2 x 2/1
6/2 = 3 hours
44 x 3 = 132 miles
Answer: 132 miles
[3 + 3 + 3 + 3 pts) In this exercise you will generalize the binomial distribution.
(a) Show that the number of possible ways in which a set A with cardinality |A| = n can be partitioned into r subsets A1,..., A, with cardinalities n1,..., nr such that ni +...+ nor = n is equal to n! / ni!...n!
The number of possible ways to partition a set A with cardinality n into r subsets with varying cardinalities is given by n! / (n1! * n2! * ... * nr!).
How can a set A be partitioned into subsets of different sizes?Partitioning a set A into subsets of varying sizes involves calculating the number of possible ways to arrange the elements in the subsets. The formula n! / (n1! * n2! * ... * nr!) accounts for the total number of permutations while considering the specific sizes of each subset.
To understand why this formula works, let's break it down step by step.
Step 1: Counting permutations
The numerator n! represents the total number of permutations of the elements in set A. This is because when we partition a set, the order in which we choose the elements for each subset matters. So, we start with n choices for the first element, (n-1) choices for the second element, and so on, resulting in n! permutations.
Step 2: Accounting for subsets
However, in the numerator, we are overcounting because the order of elements within each subset doesn't matter. To correct for this, we divide by the factorials of the sizes of the subsets (n1!, n2!, ..., nr!). This ensures that each partition is counted only once, irrespective of the order in which the elements are chosen within each subset.
Step 3: Simplifying the formula
Dividing n! by the product of the factorials simplifies the formula, giving us the final result: n! / (n1! * n2! * ... * nr!).
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\(\sqrt{25} is an irrational
Answer:
Is Square Root of 25 Rational or Irrational?
Step-by-step explanation:
A rational number can be expressed in the form of p/q. Because √25 = 5 and 5 can be written in the form of a fraction 5/1. It proves that √25 is rational.
The answer is:
⇨ √25 is a rational numberWork/explanation:
What are rational numbers?
Rational numbers are integers and fractions.
Irrational numbers are numbers that cannot be expressed as fractions, such as π.
Now, \(\bf{\sqrt{25}}\) can be simplified to 5 or -5; both of which are rational numbers.
Hence, √25 is rational.the number of people arriving for treatment at an emergency room can be modeled by a poisson process with a mean of 5 people per hour. how many people do you expect to arrive during a 30-minute period? a) 150.00 b) 1.00 c) 5.00 d) 0.61 e) 2.50 f) none of the above
The number of people arriving for treatment at an emergency room can be modeled by a poisson process with a mean of 5 people per hour.The expected number of people arriving in a 30-minute period is 5 × (30/60) = 2.50, the correct option is (e) 2.50.
The Poisson process is a type of probability distribution that can be used to model the number of events that happen in a given time period. In this case, the mean number of people arriving for treatment in an emergency room is 5 per hour. To calculate the expected number of people arriving during a 30-minute period, we can use the formula:
mean × (time/60).
To better understand this, let's break down the formula. The mean (5) is the average number of people arriving per hour, and the time (30 minutes) is divided by 60 to convert the time into hours. This gives us the expected number of people arriving in the given time period.
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Consider the following game, where player 1 chooses a strategy U or M or D and player 2 chooses a strategy L or R. 1. Under what conditions on the parameters is U a strictly dominant strategy for player 1 ? 2. Under what conditions will R be a strictly dominant strategy for player 2 ? Under what conditions will L be a strictly dominant strategy for player 2 ? 3. Let a=2,b=3,c=4,x=5,y=5,z=2, and w=3. Does any player have a strictly dominant strategy? Does any player have a strictly dominated strategy? Solve the game by iterated deletion of strictly dominated strategies. A concept related to strictly dominant strategies is that of weakly dominant strategies. A strategy s weakly dominates another strategy t for player i if s gives a weakly higher payoff to i for every possible choice of player j, and in addition, s gives a strictly higher payoff than t for at least one choice of player j. So, one strategy weakly dominates another if it is always at least as good as the dominated strategy, and is sometimes strictly better. Note that there may be choices of j for which i is indifferent between s and t. Similarly to strict dominance, we say that a strategy is weakly dominated if we can find a strategy that weakly dominates it. A strategy is weakly dominant if it weakly dominates all other strategies. 4. In part (3), we solved the game by iterated deletion of strictly dominated strategies. A relevant question is: does the order in which we delete the strategies matter? For strictly dominated strategies, the answer is no. However, if we iteratively delete weakly dominated strategies, the answer may be yes, as the following example shows. In particular, there can be many "reasonable" predictions for outcomes of games according to iterative weak dominance. Let a=3,x=4,b=4,c=5,y=3,z=3,w= 3. (a) Show that M is a weakly dominated strategy for player 1. What strategy weakly dominates it? (b) After deleting M, we are left with a 2×2 game. Show that in this smaller game, strategy R is weakly dominated for player 2 , and delete it. Now, there are only 2 strategy profiles left. What do you predict as the outcome of the game (i.e., strategy profile played in the game)? (c) Return to the original game of part (4), but this time note first that U is a weakly dominated strategy for player 1 . What strategy weakly dominates it? (d) After deleting U, note that L is weakly dominated for player 2 , and so can be deleted. Now what is your predicted outcome for the game (i.e., strategy profile played in the game)?
The predicted outcome of the game, or the strategy profile played in the game, would then depend on the remaining strategies.
1. A strategy is considered strictly dominant for a player if it always leads to a higher payoff than any other strategy, regardless of the choices made by the other player. In this game, for player 1 to have a strictly dominant strategy, the payoff for strategy U must be strictly higher than the payoffs for strategies M and D, regardless of the choices made by player 2.
2. For player 2 to have a strictly dominant strategy, the payoff for strategy R must be strictly higher than the payoffs for strategies L and any other possible strategy that player 2 can choose.
3. To determine if any player has a strictly dominant strategy, we need to compare the payoffs for each strategy for both players. In this specific example, using the given values (a=2, b=3, c=4, x=5, y=5, z=2, and w=3),
4. The order in which strategies are deleted does matter when using iterative deletion of weakly dominated strategies. In the given example, when we delete the weakly dominated strategy M for player 1, we are left with a 2x2 game.
(c) In the original game of part (4), when we note that U is a weakly dominated strategy for player 1, we can look for a strategy that weakly dominates it. By comparing the payoffs, we can determine the weakly dominant strategy.
(d) After deleting U and noting that L is weakly dominated for player 2, we can delete it as well. The predicted outcome of the game, or the strategy profile played in the game, would then depend on the remaining strategies.
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Lets get to know each other
Answer:Uh I like dog .For question 35.
Step-by-step explanation:
Write a story that could represent this math problem.
A rectangle partitioned into thirds five times. The first part, the second part, the fourth part, the fifth part, the seventh part, the eighth part, the tenth part, the eleventh part, the thirteenth part, and the fourteenth part are shaded.
Answer: Bryan had 2/3 of a chocolate bar. Four of his friends also had 2/3 of a chocolate bar. How much chocolate did they have all together?
Step-by-step explanation:
The math problem is 2/3 x 5 so if he had five people, including him. That would be 2/3 x 5
Answer: it is a
Step-by-step explanation: did when who bs ehd
used to measure the center of a set of values. good for summarizing values that are generally pretty similar to each other.
Mean is used to measure the center of a set of values. It is good for summarizing values which are generally pretty similar to each other.
What is mean and its function?Mean is more usually referred to as the average. It is calculated by adding up all of the values and dividing by the total number of values. It is a good way for summarizing the center of values which are commonly very similar to each other.
The mean is the most often used measure of central tendency since it uses all values in the data set to give us an average. For data from skewed distributions, the median is better than the mean because it is not influenced by large values.
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Although part of your question is missing, you might be referring to this full question: _________ is used to measure the center of a set of values. It is good for summarizing values that are generally pretty similar to each other.
What is the area of the base of the rectangular prism? square centimeters what is the height of the rectangular prism? centimeters what is the volume of the rectangular prism? cubic centimeters
To determine the area of the base, height, and volume of a rectangular prism, we need more specific information such as the measurements of its dimensions (length, width, and height).
Without these values, we cannot provide an exact answer. However, I can explain the formulas and concepts involved. The base of a rectangular prism refers to one of its faces, which is a rectangle. To calculate the area of the base, we need to know the length and width of the rectangle. The formula for the area of a rectangle is A = length * width. The result will be in square units, such as square centimeters.
The height of a rectangular prism refers to its vertical dimension. To find the height, we need the measurement from the base to the top face. This measurement is typically perpendicular to the base. The height is usually given in units such as centimeters. The volume of a rectangular prism can be calculated by multiplying the area of the base by the height. The formula for the volume of a rectangular prism is V = base area * height. The result will be in cubic units, such as cubic centimeters.
To obtain the specific values for the area of the base, height, and volume of a rectangular prism, you will need to provide the measurements of its dimensions (length, width, and height).
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What is an equation in point-slope form for the line that passes through the points (4,-1) and (-3, 4)?
y – 4 = -5/7(x + 3)
y+ 4 = -5/7(x + 3)
y+4 = 5/7(x + 3)
y – 3 = -5/7(x + 4)
Answer: the 1st one is the correct answer.
Step-by-step explanation:
Answer:
I will choose the first option
Step-by-step explanation:
\(gradient(m) = \frac{y2 - y1}{x2 - x1} \\ \\ taking \: x1 = - 3 \\ x2 = 4 \\ y1 = 4 \\ y2 = - 1 \\ \\ m = \frac{ - 1 - 4}{4 - - 3} \\ m = \frac{ - 5}{7} \\ \\ y - y1 = m(x - x1) \\ y - 4 = \frac{ - 5}{7} (x - -3) \\ \\ y - 4 = \frac{ - 5}{7} (x + 3)\)
If 8,575 = 5^x * 7^y, what is (xy) - 5?
The value of xy - 5 is 1
How to determine the valueGiven the expression as;
8,575 = 5^x * 7^y,
Represented as:
\(8575 = 5^x * 7^y\)
Let's find the prime factors of 8575
\(8575 = 5^2 . 7^3\)
We can deduce that:
x has a value of 2y has a value of 3Now, let's find the value of xy - 5 by substituting the values
= xy - 5
= 2(3) - 5
= 6 - 5
= 1
Thus, the value of xy - 5 is 1
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What is the X and Y intercept?
X: 0, 5, 10, 15, 20, 25, 30, 35, 40
Y: 7, 10, 20, 20, 24, 32, 35, 45, 57
Answer:
y-intercept: (0, 7)x-intercept: cannot be determinedStep-by-step explanation:
You want to know the x- and y-intercepts of a function described by a data table.
InterceptsThe x-intercept is the x-value where y = 0. There is no y=0 entry in the table, and the entries there are not regular enough to support any speculation as to how the function might be extrapolated.
There is no x-intercept.
The y-intercept is shown in the table where x=0.
The y-intercept is (0, 7).
Kiera draws line segment XY on a number line, Point X is at -7 and point Y is at 5. Point P is 1/4 of the distance from X to Y. What is the location of point P?
Answer:
p = -4
Step-by-step explanation:
7 plus 5 is 12
12/4 is 3
-7 + 3 is -4
Line parallel to y= -2 + 7
Answer:
So, equation y=7 is parallel to x-axis. A line parallel to X axis. x axis because it is the same thing as y=0x+7 or y=7, therefore y intercept is 7 and slope is 0.
Step-by-step explanation:
what is (-7+3i)/(-6-6i) show in steps
The steps for the final expression.
Step 1: (-7 + 3i) / (-6 - 6i)
Step 2: (-7 + 3i)x(-6 + 6i) / (-6 - 6i)x(-6 + 6i)
Step 3: (42 - 42i - 18i - 18) / (36 + 36)
Step 4: (24 - 60i)/72
Step 5: 24/72 - (60/72)i
Step 6: 1/3 - (5/6)i
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
(-7 + 3i) / (-6 - 6i)
Rationalize the denominator.
= (-7 + 3i) / (-6 - 6i) x (-6 + 6i) / (-6 + 6i)
= (42 - 42i - 18i - 18) / (36 + 36)
= (24 - 60i) / 72
= 24/72 - (60/72)i
= 1/3 - (5/6)i
Thus,
The final expression is 1/3 - (5/6)i
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659,470. 53 Is the 100%, if you have only 321,034. 21 of it, whats the percentage?
Answer:48.6805998746%, you can round this.
Step-by-step explanation:
In order to solve this, you need to divide the smaller number by the larger number, creating a fraction. This will give you a decimal number. In order to get the percent, you need to take the decimal, and move the decimal point 2 digits TO THE RIGHT. This will give you 48.6805998746%.
To check this, you can use the answer, and use a calculator such as desmos to calculate 48.6805998746% of 659470.53
This provides you with 321034.21, which means that this is the correct percent. You can round this to get something like 48.7%
x - 5(x + 1) – 3x + 2
Answer:
-7x-3
Step-by-step explanation:
Step-by-step explanation:
x−5(x+1)−3x+2
Distribute:
=x+(−5)(x)+(−5)(1)+−3x+2
=x+−5x+−5+−3x+2
Combine Like Terms:
=x+−5x+−5+−3x+2
=(x+−5x+−3x)+(−5+2)
=−7x+−3
Answer:
=−7x−3
colin rolls a fair dice 18 time, how many times would colin expect to roll an odd number?
Answer:
9
Step-by-step explanation:
a normal dice is 6 sides
half of 18 is 9
50% for odd and even
Answer:
9 times
Step-by-step explanation:
Because you have an equal chance of rolling an odd or even number on the die. So half of 18 is 9.
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Hi can someone help me with this please
Answer:
Look at explanation.
Step-by-step explanation:
10*10 = 100
25 = 100/4
7*3+3=25-1
21+3=25-1
24=24
6*3=16/2
18 is not equal to 8
27 - 20 = 9-2
7 = 7.
Answer:
(a) False
(b) True
(c) True
(d) Tue
(e) False
(f) True
Step-by-step explanation:
\(\large \boldsymbol{\sf (a)\ 15 + 5 = 30}\)
\(\large \boxed{\begin{minipage}{2.2 cm}\begin{aligned}\sf 15 + 5 & = \sf 30\\\sf 20 & = \sf 30\end{aligned}\\\\\implies \textsf{False}\end{minipage}}\)
..................................................................................................................................................
\(\large \boldsymbol{\sf (b)\ 5 (7) - 3 = 32}\)
\(\large \boxed{\begin{minipage}{2.48 cm}\begin{aligned}\sf 5 (7) - 3 & = \sf 32\\\sf 35 - 3 & = \sf 32\\\sf 32 & = \sf 32\end{aligned}\\\\\implies \textsf{True}\end{minipage}}\)
..................................................................................................................................................
\(\large \boldsymbol{\sf (c)\ 25 = \dfrac{10^2}{4}}\)
\(\large \boxed{\begin{minipage}{1.8 cm}\begin{aligned}\sf 25 & = \sf \dfrac{10^2}{4}\\\sf 25 & = \sf \dfrac{100}{4}\\\sf 25 & = \sf 25\end{aligned} \\\\\implies \textsf{True}\end{minipage}}\)
..................................................................................................................................................
\(\large \boldsymbol{\sf (d)\ 7 (3) + 3 = 5^{2} - 1}\)
\(\large \boxed{\begin{minipage}{3.2 cm}\begin{aligned}\sf 7 (3) + 3 & = \sf 5^2 - 1\\\sf 21 + 3 & = \sf 25 - 1\\\sf 24 & = \sf 24\end{aligned}\\\\\implies \textsf{True}\end{minipage}}\)
..................................................................................................................................................
\(\large \boldsymbol{\sf (e)\ 6 (11 - 8) = \dfrac{16}{2}}\)
\(\large \boxed{\begin{minipage}{2.8 cm}\begin{aligned}\sf 6 (11 - 8) & = \sf \dfrac{16}{2}\\\sf 6 (3) & = \sf 8\\\sf 18 & = \sf 8\end{aligned}\\\\\implies \textsf{False}\end{minipage}}\)
..................................................................................................................................................
\(\large \boldsymbol{\sf (f)\ 3^{3} - 4(5) = |-9| - 2}\)
\(\large \boxed{\begin{minipage}{3.88 cm}\begin{aligned}\sf 3^3 - 4 (5) & = \sf |-9| - 2\\\sf 27 - 20 & = \sf 9 - 2\\\sf 7 & = \sf 7\end{aligned}\\\\\implies \textsf{True}\end{minipage}}\)
Graph the linear inequality.
x<4
Answer: Look at the graph
In the picture shown below, what proportion would NOT give the correct value of x?
Answer: (c)
Step-by-step explanation:
In the given figure, two triangles are similar namely \(\triangle ABC\) and \(\triangle ADB\)
For similar triangles, the ratio of the corresponding sides are equal.
For option (a), Hypotenuse to Perpendicular ratio is given, that is correct
Similarly for option (b), Perpendicular to hypotenuse ratio is given
Both option (a) and (b) gives the same value of \(x\) that is,
\(\Rightarrow x=\sqrt{81\times 45}\\\Rightarrow x=60.37\)
Option (c) does not give the correct value of \(x\)
Answer:
C
Step-by-step explanation:
In the given figure, two triangles are similar namely and
For similar triangles, the ratio of the corresponding sides are equal.
For option (a), Hypotenuse to Perpendicular ratio is given, that is correct
Similarly for option (b), Perpendicular to hypotenuse ratio is given
Both option (a) and (b) gives the same value of that is,
Option (c) does not give the correct value of
Write an addition expression to describe the situation. Then find the sum and select the correct answer below. A hiker starts at 200 ft. above sea level and then hikes up the mountain 1,500 more feet. When coming down the other side of the mountain, she descends 500 before taking a ten-minute break. How high above sea level is she during this ten-minute break?
A 1,700 ft. B1,000 ft. C1,200 ft. D1,190 ft.
Answer:
(200+1,500) - 500 = 1,200 ft
Step-by-step explanation:
the hiker started at 200 ft then went 1500 more feet. (add it up) Then, she descends (goes down) 500 feet. So let's subtract 500 feet from the sum of 200 and 1500. ( (200+1500 equals 1700, then subtract 500 which will be 1200.) ) So, she is 1200 feet above sea level during the 10 minute break.
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A box contains some cards.
Each card has a question.
Each question is about History,
Languages, Movies or Sport.
The questions have three levels Easy,
Medium or Difficult.
The table shows the probability for each
type of question.
History
Languages
Movies
Sport
Easy
0.15
0.1
0.01
0.12
Medium
0.2
0.08
0.03
0.07
Difficult
0.05
0.02
0.06
0.11
A card is picked at random.
What is the probability that it is a
Medium level question about Languages
or Movies?
If a card is picked at random, the probability that it is a Medium level question about Languages or Movies is 0.11 or 11%
What is the probability?Probability refers to the chance, odds, or likelihood of an expected success, outcome, or event occurring out of many possible successes, outcomes, or events.
Probability lies between zero and one depending on the level of certainty associated with the expected outcome.
The probability of picking a medium level question card about Languages = 0.08
The likelihood of picking a medium level question card about Movies = 0.03.
The possibility of selecting a medium level question card about Languages or Movies = 0.11 (0.08 + 0.03).
Learn more about probabilities at https://brainly.com/question/25870256.
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The population has a parameter of π=0.57π=0.57. We collect a sample and our sample statistic is ˆp=172200=0.86p^=172200=0.86 .
Use the given information above to identify which values should be entered into the One Proportion Applet in order to create a simulated distribution of 100 sample statistics. Notice that it is currently set to "Number of heads."
(a) The value to enter in the "Probability of Heads" box:
A. 0.86
B. 172
C. 200
D. 0.57
E. 100
(b) The value to enter in the "Number of tosses" box:
A. 100
B. 0.57
C. 0.86
D. 172
E. 200
(c) The value to enter in the "Number of repetitions" box:
A. 200
B. 0.57
C. 100
D. 0.86
E. 172
(d) While in the "Number of Heads" mode, the value to enter in the "As extreme as" box:
A. 0.86
B. 100
C. 200
D. 0.57
E. 172
(e) If we switch to "Proportion of heads" then the value in the "As extreme as" box would change to a value of
A. 0.57
B. 200
C. 100
D. 0.86
E. 172
To create a simulated distribution of 100 sample statistics using the One Proportion Applet, the following values should be entered: (a) The value to enter in the "Probability of Heads" box: A. 0.86 (b) The value to enter in the "Number of tosses" box: A. 100 (c) The value to enter in the "Number of repetitions" box: A. 200 (d) While in the "Number of Heads" mode, the value to enter in the "As extreme as" box: E. 172 (e) If we switch to "Proportion of heads" mode, the value in the "As extreme as" box would change to: D. 0.86
The population parameter π represents the probability of success (heads) which is given as 0.57. The sample statistic, ˆp, represents the observed proportion of success in the sample, which is 0.86.
To create a simulated distribution of 100 sample statistics using the One Proportion Applet, we need to enter the appropriate values in the corresponding boxes:
(a) The "Probability of Heads" box should be filled with the value of the sample statistic, which is 0.86.
(b) The "Number of tosses" box should be filled with the number of trials or tosses, which is 100.
(c) The "Number of repetitions" box should be filled with the number of times we want to repeat the sampling process, which is 200.
(d) While in the "Number of Heads" mode, the "As extreme as" box should be filled with the number of heads observed in the sample, which is 172.
(e) If we switch to "Proportion of heads" mode, the "As extreme as" box would then be filled with the proportion of heads observed in the sample, which is 0.86.
By entering these values into the One Proportion Applet, we can simulate the distribution of sample statistics and analyze the variability and potential outcomes based on the given sample proportion.
Learn more about population parameter π here:
https://brainly.com/question/31386782
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Find the value of z.
In Richmond, Virginia, the average daily high temperature was 90°F for July. The average daily low temperature for the same month was 69°F. If a day's temperature change is measured by comparing the morning/low temperature to the afternoon/high temperature, what is the percent of increase between the average low and high temperatures in July? Round your answer to the tenths place.
Answer:
To find the percent increase between the average low and high temperatures in July, we need to calculate the difference between the average high and low temperatures and then divide that difference by the average low temperature. Finally, we multiply the result by 100 to get the percentage increase.
The difference between the average high and low temperatures is:
90°F - 69°F = 21°F
To find the percentage increase, we need to divide the difference by the average low temperature and multiply by 100:
Percentage increase = (21°F / 69°F) × 100%
≈ 30.4%
Therefore, the percent of increase between the average low and high temperatures in July is approximately 30.4%, rounded to the tenths place.