Answer:8
Step-by-step explanation:
Which expression represents the area of the shaded region?
(picture below)
Answer:
B
Step-by-step explanation:
total area minus white area give you shaded area
I need steps to find the equation of the inverse of the function f(x) = log2 (9x).
Answer:
f⁻¹(x) = 2ˣ / 9
Step-by-step explanation:
f(x) = log₂ (9x)
y = log₂ (9x)
swap y and x: x = log₂ (9y)
solve y: 9y = 2ˣ y = 2ˣ / 9
f⁻¹(x) = 2ˣ / 9
The equation of the inverse of the function f(x) = log2 (9x) should be considered as the \(f^{-1}(x) = 2^x / 9\)
Calculation of the equation of the inverse of the function:Since
f(x) = log₂ (9x)
So,
y = log₂ (9x)
Now
swap y and x so x = log₂ (9y)
And, now we have to solve for y
9y = 2ˣ
y = 2ˣ / 9
f⁻¹(x) = 2ˣ / 9
Hence, The equation of the inverse of the function f(x) = log2 (9x) should be considered as the \(f^{-1}(x) = 2^x / 9\)
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Please answer thanks
Answer:
40.73
not 100% sure but by comparing to the other answers, its the most logical
Answer:
$40.00
Step-by-step explanation:
Find 1% of 50
50 / 100 = 0.5
Multiply that value by 5
0.5 * 5 = 2.5
Multiply the new value by 4
2.5 * 4 = 10
Subtract
50 - 10 = 40
6 times a number is equivalent to 28 less than 2 times the number. What is the number
Answer:
Step-by-step explanation:
2x+28<=6x
28<=4x
7<=x
Choose the symbol that makes the following sentence true:
⅝ __ ⁷/12
<
=
>
5/8 is greater then 7/12.
Step-by-step explanation:
Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
For the 1st fraction, since 8 × 3 = 24,
5/8=5x3/8x3=15/24
Likewise, for the 2nd fraction, since 12 × 2 = 24,
7/12= 7x2/12x2=14/24
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
15/24>14/24 or 5/8>7/12
A speculative statement about the relationship between two or more variables is known as a? a-correlation b- hypothesis c- sample d- research design
A speculative statement about the relationship between two or more variables is known as a b - hypothesis.
Variables:
A variable is a measurable trait or characteristic that is subject to change under different conditions.
Given,
Here we need to find what is meant by a speculative statement about the relationship between two or more variables.
The definition of Hypothesis is,
It is basically a testable statement about the relationship between two or more variables or a proposed explanation for some observed phenomenon.
So, a speculative statement about the relationship between two or more variables is known as a b - hypothesis.
So, the option (b) - Hypothesis is correct.
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a_(n)=3*2^(n-1) please help <3
There are 4 dogs, 6 cats, a rooster and 8 pigs on a farm. What is the ratio of
pigs to all the other animals?
A.8:11
B.11:8
C.8:10
D.10:8
Answer: A, 8:11
Step-by-step explanation:
4 dogs + 6 cats + 1 rooster = 11
8 pigs
ratio for pigs to other animals : 8:11
8 goes first bc the question was "What is the ratio of
pigs to all the other animals? "
pigs first - other animals second
Take the derivatives of the following functions. Do not simplify. a. f(x)=10x
4
f(x)= b. f(x)=20x+30x
3
f(x)= c. f(x)=(10+2x
2
)(5x−x
2
)f(x)=
d. f(x)=
20xx
2
f(x)=
a. f'(x) = 40x³
To find the derivative of f(x) = 10x⁴, we apply the power rule.
The power rule states that if f(x) = axⁿ, then f'(x) = naxⁿ⁻¹. Applying this rule, we get f'(x) = 4 * 10x³ = 40x³.
b. : f'(x) = 20 + 90x²
To find the derivative of f(x) = 20x + 30x³, we differentiate each term separately. The derivative of 20x is 20, and the derivative of 30x³ is 90x² (applying the power rule). Adding these derivatives, we get f'(x) = 20 + 90x².
r: f'(x) = (20x - 4x²)(5x - x²) + (10 + 2x²)(-2x + 5)
To find the derivative of f(x) = (10 + 2x²)(5x - x²), we apply the product rule. The product rule states that if f(x) = g(x) * h(x), then f'(x) = g'(x) * h(x) + g(x) * h'(x). Differentiating each term, we get f'(x) = (20x - 4x²)(5x - x²) + (10 + 2x²)(-2x + 5).
d.: f'(x) = 40x
To find the derivative of f(x) = 20x / (x²), we use the quotient rule. The quotient rule states that if f(x) = g(x) / h(x), then f'(x) = (g'(x) * h(x) - g(x) * h'(x)) / (h(x)²). In this case, g(x) = 20x and h(x) = x². After differentiating and simplifying, we obtain f'(x) = 40x.
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an experiment is performed and four events (a, b, c, and d) are defined over the set of all possible outcomes. the probabilities of the four events and their intersections are:which pair of states are independent?
To determine which pair of events are independent, we need to check if the probability of their intersection is equal to the product of their individual probabilities. If the two probabilities are equal, the events are independent; otherwise, they are dependent.
Using the probabilities given, we can calculate the probabilities of the individual events:
P(a) = 0.4
P(b) = 0.3
P(c) = 0.2
P(d) = 0.1
We can also calculate the probabilities of the intersections of the events:
P(a ∩ b) = 0.1
P(a ∩ c) = 0.1
P(a ∩ d) = 0.1
P(b ∩ c) = 0.05
P(b ∩ d) = 0.05
P(c ∩ d) = 0.01
Now, we can check the pairs of events for independence:
1. Events a and b:
P(a) * P(b) = 0.4 * 0.3 = 0.12
P(a ∩ b) = 0.1
Since P(a ∩ b) is not equal to P(a) * P(b), events a and b are dependent.
2. Events a and c:
P(a) * P(c) = 0.4 * 0.2 = 0.08
P(a ∩ c) = 0.1
Since P(a ∩ c) is greater than P(a) * P(c), events a and c are dependent.
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3. Events a and d:
P(a) * P(d) = 0.4 * 0.1 = 0.04
P(a ∩ d) = 0.1
Since P(a ∩ d) is greater than P(a) * P(d), events a and d are dependent.
4. Events b and c:
P(b) * P(c) = 0.3 * 0.2 = 0.06
P(b ∩ c) = 0.05
Since P(b ∩ c) is not equal to P(b) * P(c), events b and c are dependent.
5. Events b and d:
P(b) * P(d) = 0.3 * 0.1 = 0.03
P(b ∩ d) = 0.05
Since P(b ∩ d) is not equal to P(b) * P(d), events b and d are dependent.
6. Events c and d:
P(c) * P(d) = 0.2 * 0.1 = 0.02
P(c ∩ d) = 0.01
Since P(c ∩ d) is not equal to P(c) * P(d), events c and d are dependent.
Therefore, none of the pairs of events are independent.
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In a 2x3x2x2 ANOVA _______________________.
a. 4 dependent variables are tested.
b. there are 24 treatment combinations.
c. there are 24 levels
d. the person analyzing the data would have to be hospitalized for exhaustion after completing the project.
B. There are 24 treatment combinations in a 2x3x2x2 ANOVA. This design has four factors, each with two, three, two, and two levels, respectively.
The number of treatment combinations is found by multiplying the number of levels for each factor together: 2 x 3 x 2 x 2 = 24. A 2x3x2x2 ANOVA does not necessarily test four dependent variables, and the number of levels refers to the total number of unique combinations of the factors.
While analyzing data for a study of this size can be time-consuming and require careful attention to detail, it should not result in hospitalization for exhaustion.
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*PLEASE HELP SOON* Use the laws of exponents to simplify each expression. Drag the tiles to the boxes to form the correct pairs.
Answer:
First one is 3^16
Second one is 3^10
Third one is 3^2 * 8^2
Forth one is 3^2/8^2
fifth one is 3^8/3^2
Step-by-step explanation:
what is the difference between the area of the larger circle and the area of tw smaller circle? terms of pi PLS HELPP
Answer: 105 or b
Step-by-step explanation: inner 256 and outer is 361 making the difference 105
What is the sum of
of 6 3/5+5 1/7
PLEASE HELP URGENT!!!
A 63 foot long cable is anchored in the ground and
attached to the top of a light pole at an angle of
elevation of 52 degrees. Find the height of the light pole
to the nearest foot.
Answer:
The height of the light pole to the nearest foot is approximately 50 feet
Step-by-step explanation:
The parameters given in the question are;
The length of the cable = 63 feet
The angle of elevation of the cable to the top of the light pole = 52°
With the assumption that the light pole is perpendicular to the ground, the figure formed by the light pole, the distance of the of the cable from the base of the light pole and the length of the cable form a right triangle
The question can be answered by using trigonometric relations for the sine of the given angle as follows;
\(sin ( \theta) = \dfrac{Opposite \ leg \ length}{Hypotenuse \ length}\)
The opposite leg length of the formed right triangle = The height of the light pole
The hypotenuse length = The length of the cable = 63 feet
The angle, θ = The angle of elevation = 52°
Plugging in the values, gives;
\(sin (52 ^ {\circ}) = \dfrac{The \ height \ of \ the \ light \ pole }{63 \ feet}\)
∴ The height of the light pole = 63 feet × sin(52°) ≈ 49.645 feet
The height of the light pole to the nearest foot ≈ 50 feet.
Patty found a battery-powered toy car in her basement that moved at a speed of 23 mm per second. After she replaced the battery, the speed of the car increased by x mm per second. The car with the new battery can travel 50 mm in 2 seconds. Which equation would you solve to find x?
Answer:
23x + 2 = 50
Step-by-step explanation:
My teacher told me lol
Answer:
23x + 2 = 50
I also had this question!
Step-by-step explanation:
A group of friends wants to go to the amusement park. They have no more than $160 to spend on parking and admission. Parking is $10.50, and tickets cost $32.50 per person, including tax. Write and solve an inequality which can be used to determine x, the number of people who can go to the amusement park.
Answer:
x=4.6 answer is at most 4 people can go
Step-by-step explanation:
32.50x+10.50=160.00
- 10.50 -10.50
149.50
32.50x = 149.50
Divide 32.50 and 149.50 to find x.
x = 4.6 round down because you cant have a fraction of a person. so 4 people can go.
Express the function = log₂ (42x + 7 165x + 6) without logarithms. 42x+7+165+6 x
The required solution is log₂ [(42x + 7)/(165x + 6)].
The given logarithmic function is `log₂ (42x + 7)/(165x + 6)`.
We need to express the function `log₂ (42x + 7)/(165x + 6)` without logarithms.
The formula that we are going to use is `log a - log b = log (a/b)`.
Now, `log₂ (42x + 7)/(165x + 6) = log₂ (42x + 7) - log₂ (165x + 6)`
This can be written as a single logarithm as follows:
We know that `log a - log b = log (a/b)`
Therefore, `log₂ (42x + 7) - log₂ (165x + 6) = log₂ [(42x + 7)/(165x + 6)]`
Thus, the function `log₂ (42x + 7)/(165x + 6)` without logarithms is `log₂ [(42x + 7)/(165x + 6)]`.
Hence, the required solution is log₂ [(42x + 7)/(165x + 6)].
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The number 87 is NOT
an element of
which set?
Answer:
C. Irrational numbers.
Step-by-step explanation:
87 is a whole number , an integer and a counting number
write and equation that represents a vertical stretch by a factor of 3 and a reflection in the x-axis of the graph of g(x)=|x|
Answer:
g(x) = -3|x|.
Step-by-step explanation:
Multiplying by 3 stretches the graph vertically by a factor 3 and the negative reflects in the x-axis.
The equation that represents a vertical stretch by a factor of 3 and reflection in x-axis of the graph of function g ( x ) = | x | is given by
f ( x ) = -3 | x |
How does the transformation of a function happen?
The transformation of a function may involve any change.
Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretched (multiplying outputs or inputs),
If the original function is y = f(x), assuming the horizontal axis is the input axis and the vertical is for outputs, then:
Horizontal shift (also called phase shift):
Left shift by c units: y=f(x+c) (same output, but c units earlier)
Right shift by c units: y=f(x-c)(same output, but c units late)
Vertical shift:
Up by d units: y = f(x) + d
Down by d units: y = f(x) - d
Stretching:
Vertical stretch by a factor k: y = k × f(x)
Horizontal stretch by a factor k: y = f(x/k)
Given data ,
Let the function be g ( x ) = | x |
Now , let the transformed function be f ( x )
The value of the function f ( x ) is calculated by
Step 1 :
Vertical stretch by a factor of 3
The Vertical stretch by a factor is done by
k: y = k × f(x)
So , multiplying the parent function by 3 , we get
f ( x ) = 3 | x |
Step 2 :
Reflection in the x-axis ,
The value of f ( x ) is multiplied by -1
So ,
f ( x ) = -3 | x |
Therefore , the transformed function f ( x ) = -3 | x |
Hence , The equation that represents a vertical stretch by a factor of 3 and reflection in x-axis of the graph of function g ( x ) = | x | is given by
f ( x ) = -3 | x |
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On a graph, an equilibrium point is where 1.a supply curve and a demand curve meet. 2.a supply curve is higher than a demand curve. 3.the supply and demand curves head up. 4.the supply and demand curves head down.
The correct answer is 1. An equilibrium point, also known as a market-clearing price, is where the supply curve and demand curve intersect and the quantity supplied equals the quantity demanded.
This is the point where there is no excess supply or excess demand in the market, and the price is stable.
In economic theory, the concept of an equilibrium point is crucial in understanding the behavior of markets. When there is a surplus of supply or demand, the market will adjust to restore equilibrium. If the price is too high, the quantity supplied will increase and the quantity demanded will decrease until the equilibrium point is reached. If the price is too low, the quantity demanded will increase and the quantity supplied will decrease until the equilibrium point is reached. Therefore, understanding the equilibrium point is essential for making informed decisions about pricing, production, and investment in a market.
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Hurrrryy i neeed hellp The Egyptians needed to know the _________ of everyone’s land so they could determine the amount of taxes one would pay for that land.
A.
inhabitants
c.
shape
b.
size
d.
Egyptians did not pay tax
Answer:
d. Egyptians did not pay tax
Step-by-step explanation:
If the Egyptians were to pay tax from land they would use the area of the land.
Answer:
size I think, sry if wrong(
An experiment is repeated, and the first success occurs on the 4th attempt. What is the success probability p for which this is most likely to happen
There is no success probability for which the first success is most likely to occur on the fourth attempt.
Assuming the success probability of an experiment is p and the number of trials until the first success occurs is denoted by X, X follows a geometric distribution with the probability mass function P(X=k) = (1-p)^(k-1) * p, where k is the number of trials until the first success occurs.
Given that the first success occurs on the 4th attempt, P(X=4) is maximum when p is maximum. To find the value of p, we need to maximize the function P(X=4), which can be represented by (1 - p)^(3) * p.
Differentiating this function with respect to p, we get d[P(X=4)]/dp = -3(1 - p)^(2) * p + (1 - p)^(3).
Equating the above equation to zero, we get -3(1 - p)^(2) * p + (1 - p)^(3) = 0, which further leads to (1 - p)^(2)[(1 - p) + 3p] = 0 and (1 - p)^(2)(1 + 2p) = 0.
Since (1 - p)^(2) > 0, the solution is given by: 1 + 2p = 0, which results in p = -1/2.
However, the probability of success cannot be negative. Therefore, p cannot be equal to -1/2. Hence, there is no success probability for which the first success is most likely to occur on the fourth attempt.
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Help with this question
The theoretical and experimental probabilities are equal.
What is probability?Probability determines the likelihood of a random event occurring. The ratio of the number of favorable outcomes to the total number of possible outcomes is known as theoretical probability.
Theoretical probability = number of odd sides/ die sides
Here given that the numbers that are odd comes 6
So,
6/20 = 3/10 theoretical probability
The outcome of an experiment that has been repeated multiple times is used to calculate experimental probability.
Experimental probability = number of times Tani landed on a odd number divided by the number of times the experiment was performed
6/ 20= 3/10.
Therefore here , both experimental and theoretical probabilities are equal.
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someone help
i dont know how to do this hekp
Answer: J
Step-by-step explanation: hope its correct
Hi!
The answer to your question would be J
Here's the math to prove it:
Step 1) You need to add all of the number of tiles together.
9+7+3+6=25
Step 2) You need to take each of your tile numbers and divide them by 25.
9/25=0.36 So F would be true
7/25=0.28 So G would be true
6/25=0.24 So H would be true
3/25=0.12 So J would be not true.
I hope this helps!
Have an amazing day/night!
God bless!
<33
What is the volume of a sphere with a radius of 12 units?
A. 1447 units
B. 230410 units
C. 5767 units
D. 17287 units
Answer:
7238 units^3
Step-by-step explanation:
The formula for the volume of a sphere of radius 12 units is
V = (4/3)(pi)r^3.
Here, with r = 12 units,
V = (4/3)(pi)(12 units)^3 = 7238 units^3
Answer:
V = 2304π units³
Step-by-step explanation:
V = (4/3)πr^3
V = (4/3)π(12)^3
V = (4/3)π(1728)
V = 2304π units³
64 is 80% of what?
A. 64 x n = 80; 0.8
B. 0.64 x n = 80; 125
C. 64 = 0.80 x n; 80
D. 80 = 64 x n; 1.3
Answer:
C. 64 = 0.80 x n; 80
Step-by-step explanation:
In this context "of" means "times." The given relation can be translated to ...
64 is 80% of what
64 = 0.80 × what
If we let "n" represent the number that would answer "what", then this is ...
64 = 0.80 × n
__
Dividing by the coefficient of n, we find the value of n to be ...
64/0.80 = n = 80
a probability distribution of the claim sizes for an auto insurance policy is given in the table below: claim size 20 30 40 50 60 70 80 probability 0.10 0.10 0.10 0.20 0.15 0.10 0.25 what percentage of the claims are within one standard deviation of the mean claim size?
55% of the claims are within one standard deviation of the mean claim size.
To find the percentage of claims that are within one standard deviation of the mean claim size, we first need to calculate the mean and standard deviation of the distribution.
The mean claim size is:
u = (20 × 0.10) + (30 × 0.10) + (40 × 0.10) + (50 × 0.20) + (60 × 0.15) + (70 × 0.10) + (80 × 0.25) = 54
The variance can be calculated as follows:
s^2 = [\((20-54)^{2}\) × 0.10] + [\((30-54)^{2}\) × 0.10] + [\((40-54)^{2}\) × 0.10] + [\((50-54)^{2}\) × 0.20] + [\((60-54)^{2}\) × 0.15] + [\((70-54)^{2}\) × 0.10] + [\((80-54)^{2}\) × 0.25] = 340
The standard deviation is the square root of the variance:
s = √340 ≈ 18.44
To find the percentage of claims that are within one standard deviation of the mean claim size, we need to find the range of claim sizes that fall within the interval (u - s, u + s).
(u - s) = 54 - 18.44 = 35.56
(u + s) = 54 + 18.44 = 72.44
We can see from the table that the claim sizes 40, 50, 60, and 70 fall within this range, and their probabilities add up to:
0.10 + 0.20 + 0.15 + 0.10 = 0.55
Therefore, 55 percentage of the claims are within one standard deviation of the mean claim size.
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Classify the expression: 5x 3x2 − 7x3 2. Linear expression Quadratic expression Cubic expression Quartic expression.
The given expression 5x+3x²-7x³+2 is a cubic expression.
What is a cubic expression?A cubic expression is a three-dimensional algebraic equation of the form ax³ + bx² + cx + d = 0, where the coefficients are a, b, and c, and the constant is d.
In order to classify the given expression as 5x+3x²-7x³+2, we need to rearrange the given expression,
\(5x+3x^2-7x^3+2\\\\=-7x^3+3x^2+5x+2\)
Since the highest power that is in the expression is 3, therefore, the given expression is a cubic expression.
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A penny is 6×10
–
2 inches thick. The Empire State Building has a height of 1,250 feet, or 1.5×104 inches. How many pennies would you have to stack to reach the top of the Empire State Building?
Write your answer in scientific notation.
u are cheating we must help
Answer:
2.5x10^5
Step-by-step explanation: