the best prediction possible for the number of times the spinner will land on yellow if it is spun 72 times is 12. This means that out of 72 spins,
how to solve probability
If the spinner has 12 equal parts and 2 of them are yellow, then the probability of the spinner landing on yellow is 2/12, or 1/6. This means that out of every 6 spins, we can expect the spinner to land on yellow once.
To find the best prediction for the number of times the spinner will land on yellow if it is spun 72 times, we can use the idea of expected value. The expected value of an event is the average value we would expect to see if the event were repeated many times.
In this case, the expected value of the number of times the spinner will land on yellow in 72 spins is simply the probability of landing on yellow multiplied by the number of spins:
Expected value = Probability of yellow x Number of spins
Expected value = (1/6) x 72
Expected value = 12
Therefore, the best prediction possible for the number of times the spinner will land on yellow if it is spun 72 times is 12. This means that out of 72 spins, we can expect the spinner to land on yellow approximately 12 times on average. However, it's important to remember that this is just a prediction based on probability, and the actual number of yellow spins may vary.
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prove that the sum of the lengths of the diagonals of a quadrilateral is less than the perimeter but greater than the half of the perimeter of this quadrilateral
Let us consider a quadrilateral ABCD (as shown in the figure below) such that AC and BD are the two diagonals of ABCD.
Now, in triangle ABC and triangle ADC, by using the properties of triangle inequality we have-
AB +BC > AC .... (1)
and AD + CD >AC .... (2)
adding equations (1) and (2) we get-
AB+ BC+CD+AD > 2AC .... (3)
Similarly for diagonal BD we get-
AB+BC+CD+AD > 2BD .... (4)
Adding equations (3) and (4) we get-
2(AB+BC+CD+AD) > 2(AC+BD)
⇒ (AB+BC+CD+AD) > AC+BD
here (AB+BC+CD+AD) = perimeter of quadrilateral.
Hence, we have proven that the sum of the length of the diagonals of a quadrilateral is less than the perimeter.
Now the 2 diagonals divide the quadrilateral into 4 quadrilaterals
Therefore, AO+OD > AD
OD+OC > CD
OC+OB > BC
and OA+OB > AB
Adding all these equations-
2(AC+BD)>AB+BC+CD+AD
⇒AC+BD > 1/2(AB+BC+CD+AD)
Hence, we've proven that the sum of the length of the diagonals is greater than the half of the perimeter of this quadrilateral.
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60 = y-3 divided by 10
Answer:
y = 60.3
Step-by-step explanation:
Find the area of the polygon
Answer:
14 square units
According to this diagram, what is tan 62 degrees ?
Answer:
According to this diagram, the tan 62 degrees, is the ratio of the opposite side and the adjacent side of the triangle which is equal to 1.875 units.
What is the right angle triangle property?
In a right-angle triangle ratio of the opposite side to the adjacent side is equal to the tangent angle between the adjacent side and the hypotenuse side.
Here, (b) is the opposite side, (a) is the adjacent side, and is the angle made between the adjacent side and the hypotenuse side.
The sides of the triangle are 8, 15, and 17 units long and the measure of the angles of the right angle triangle is 62, 90, and 28 degrees.
Re-draw, the Here in the given triangle, the base is the side which is 15 units long. Re-draw the triangle as shown below.
In the attached triangle below, the opposite side of the triangle is 15 units and the adjacent side of the triangle is 8 units long.
The angle between the opposite side and the adjacent side is 62 degrees. Thus using the right angle triangle property as,
Thus, according to this diagram, the tan 62 degrees, is the ratio of the opposite side and the adjacent side of the triangle which is equal to 1.875 units.
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Find the value of x. Round to the nearest whole number.
Use trigonometry.
sin x = opposite ÷ hypotenuse
sin x = 7/9
Take the arcsin on both sides.
arcsin(sin x) = arcsin(7/9)
x = 51.057558731
Rounding to the nearest whole number means to round to the ones place.
Answer: x = 51 degrees
is 2in greater than 4cm
2 in = 5.08 cm So 2in is greater
hi i need help!
True or False??
Answer:
False
Step-by-step explanation:
The total amount of books is 42 not 30 so it would be 12 : 42
Use the following table to answer the questions below. Give your probabilities as DECIMALS rounded to the hundredths place.
Fair Hair
Dark Hair
Blue Eyes
8
5
Other
7
10
Jamie investigated hair and eye color.
One of the people is chosen. Calculate the probability of choosing
a. Someone with Blue eyes
b. Someone with fair hair and blue eyes
A person with dark hair is chosen. Calculate the probability of
1. them having blue eyes.
2. them not having blue eyes
Answer: 1 =.43, 2=.26, 3=.16 4=.33
Step-by-step explanation: So to find all these answers we have to know the total number of people in the chart 30. Then we have to find what info we need from the chart and divide it by the total number of people. I hope this helped I tried to make it simple.
I need help anyone know what this is?
Answer:
∠\(ACD=60\)° or B
Step-by-step explanation:
\(110+120+70= 300\)
\(360-300=60\)
Answer:
B 60
Step-by-step explanation:
Do not let all the extra triangles on the outside trip you out. The shape is a trapezoid which total should equal 360. Add all the angles up and subtract from 360 to get 60
Hope this Helps :)
Two boats leave the same port at the same time. One travels at a speed of 28 mi/h in the direction N 50° E, and the other travels at a speed of 22 ml/h in a direction S 70° E (see the figure). How far apart are the two boats after 1 h? (Round your answer to the nearest mile.)
Given:
One travel speed, \(a = 28 \ mi/h\)Other travel speed, \(b = 22 \ mi/h\)Angle, \(\Theta = 60^{\circ}\)As we know the formula,
→ \(Distance = \sqrt{a^2+b^2-2ab Cos \Theta}\)
By substituting the values, we get
\(= \sqrt{(28)^2+(22)^2-2\times 28\times 22 Cos 60^{\circ}}\)
\(= \sqrt{784+484-616}\)
\(= \sqrt{652}\)
\(= 25 \ miles\)
Thus the above answer is correct.
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ALGEBRA please put a very small explanation to the awnser
Certainly! The problem can be solved using the Pythagorean theorem,
which states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
In this case, the ladder acts as the hypotenuse, and we need to find the length of the vertical side (height) it reaches up the wall.
The ladder forms the hypotenuse, and its length is given as 12 meters. The distance from the foot of the ladder to the base of the wall represents one side of the triangle, which is 4.5 meters.
By substituting the given values into the Pythagorean theorem equation: (12m)^2 = h^2 + (4.5m)^2, we can solve for the unknown height 'h'.
Squaring 12m gives us 144m^2, and squaring 4.5m yields 20.25m^2. By subtracting 20.25m^2 from both sides of the equation, we isolate 'h^2'.
We then take the square root of both sides to find 'h'. The square root of 123.75m^2 is approximately 11.12m.
Therefore, the ladder reaches a height of approximately 11.12 meters up the wall.
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Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model. A sample of 1100 bacteria selected from this population reached the size of 1257 bacteria in six hours. Find the hourly growth rate parameter
.Note: This is a continuous exponential growth model.
Write your answer as a percentage. Do not round any intermediate computations, and round your percentage to the nearest hundredth.
The hourly growth rate parameter is equal to 2.22%.
How to determine the hourly growth rate parameter?In Mathematics, an exponential function simply refers to a mathematical function whose values are generated by a constant that is raised to the power of the argument.
Mathematically, an exponential function can be modeled by using this equation:
A(t) = ae^{kt}
Where:
a represents the initial value.t represents time.k represents the rate of change or growth rate.Based on the information provided, we have the following:
A(t) = 1100e^{6k} .....equation 1.
A(6) = 1257 .....equation 2.
Equating the two equations, we have:
1100e^{6k} = 1257
e^{6k} = 1257/1100
e^{6k} = 1.1427
Taking the natural log (ln) of both sides of the equation, we have:
6k = ln(1.1427)
6k = 0.1334
Hourly growth rate, k = 0.1334/6
Hourly growth rate, k = 0.0222
As a percentage, we have:
Hourly growth rate, k = 0.0222 × 100
Hourly growth rate, k = 2.22%.
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i need help with the question
The intersection points are: (0, -3) and (10, 2)
The bounded area is -20.83 unit²
How to find the intersection points?(a) The intersection points of the line and curve are the points where the line and curve meet. Thus, the intersection points are:
(0, -3) and (10, 2)
(b) The integral terms of y which gives the area bound are:
a = -3, b = 2 (These are the y values of the intersection points)
Since we have x = y² + 3y and x = 2y + 6, we can say:
y² + 3y = 2y + 6
y² + 3y - 2y - 6 = 0
y² + y - 6 = 0
Thus, h(y) =
Using a = -3 and b = 2 with h(y) = y² + y - 6, we have the bounded area as:
\(Area = \int\limits^b_a {y} \, dy\)
\(Area = \int\limits^{2}_{-3} {(y^{2} + y - 6}) \, dy\)
Integrating the area:
Area = [y³/3 + y²/2 - 6y + C]²₋₃
Area = [2³/3 + 2²/2 - 6(2)] - [(-3)³/3 + (-3)²/2 - 6(-3)]
Area = [8/3 + 2 - 12] - [-9 + 4.5 + 18]
Area = [-22/3] - [27/2]
Area = -125/6
Area = -20.83 unit²
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What are the factors of the polynomial P x x3 5x2 2x 8?
The polynomial x³+5x²+2x-8 has the factors (C) (x + 4), (F) (x + 2), and (D) (x - 1) as its factors.
What are the factors?A number that entirely divides another number is known as a factor.
In other words, if multiplying two whole numbers results in a result, the two whole numbers we are multiplying are factors of the result since the result may be divided by them.
Factors are the numbers that can divide a number exactly.
Therefore, after division, there is none left over.
So, let's see if the polynomial has (x - 1) as a factor:
⇒ p(1) = (1)³ + 5(1)² + 2(1) - 8
⇒ p(1) = 1+ 5 + 2 - 8
⇒ p(1) = 0
Multiply the component g(x) = by the polynomial p(x) = x3 + 5x2 + 2x - 8. (x - 1).
⇒ (x³ + 5x² + 2x - 8) ÷ (x - 1)
⇒ x² + 6x + 8
By dividing the middle term, let's factorize the aforementioned polynomial to determine the value of x.
Determine what a, b, and c are worth.
A is the coefficient of x2 = 1, B is the coefficient of x = 6, and C is the constant term = –8 in the equation above.
Determine the factors that add up to b by multiplying a and c.
1 × (8) = 8
The two factors that add up to b are 4 and 2.
Make two terms out of bx.
x² + 4x + 2x + 8
Eliminate the common elements by grouping.
x + 4x + 2x + 8 = x(x + 4) + 2 (x + 4)
= (x + 2) (x + 4)
Therefore, the polynomial x³+5x²+2x-8 has the factors (C) (x+4), (F) (x+2), and (D) (x-1) as its factors.
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Complete question:
Select all of the factors of x3 + 5x2 + 2x - 8;
a. x + 5, b. x - 3, c. x + 4, d. x - 1, e. x + 3, f. x + 2
8-5x =2x + 20
Simplify
I’ll give brainliest
Answer:
X= - 12/7 i hope it is helpful have a nice day if you want steps i will show you
Answer/Step-by-step explanation:
Rearrange terms8 − 5 = 2 + 2 0 − 5 + 8 = 2 + 2 0
Subtract 8 from both sides of the equation − 5 + 8 = 2 + 2 0 − 5 + 8 − 8 = 2 + 2 0 − 8SimplifySubtract the numbers− 5 = 2 + 1 2
Subtract 2 2x 2x from both sides of the equation − 5 = 2 + 1 2 − 5 − 2 = 2 + 1 2 − 2xSimplify Combine like terms− 7 = 1 2
Divide both sides of the equation by the same term− 7 = 1 2 − 7 − 7 = 1 2 − 7
Simplify Cancel terms that are in both the numerator and denominator Divide the numbers= − 1 2 7
=]
The function H(t) = −16t2 + 90t + 50 shows the height H(t), in feet, of a projectile after t seconds. A second object moves in the air along a path represented by g(t) = 28 + 48.8t, where g(t) is the height, in feet, of the object from the ground at time t seconds.
Part A: Create a table using integers 1 through 4 for the 2 functions. Between what 2 seconds is the solution to H(t) = g(t) located? How do you know?
Part B: Explain what the solution from Part A means in the context of the problem.
Bob went to a baseball game the game started at 9:45 a.m. and it was 3 hours and 34 minutes long when did the game end
Answer:
1:19PM
Step-by-step explanation:
To solve this, we can first add up the minutes.
45 + 34 = 79\(\frac{79}{60}\) \(=1\frac{19}{60}\)Why do we convert it into a fraction?We convert to a fraction because if there are 60 minutes in an hour, we need to find out how many hours are in 79 minutes.
Now, we can add up the hours.
9 + 3 = 1212AM + 1 hour = 1PM1PM + 19 = 1:19 PMTherefore, the game ended at 1:19 PM
The number of children's books at a library was 2/5 of the total number of books. After 298 children's books were added to the library, the number of children's books was 4/7 of the total number of books. How many books were there in the library at first?
Answer:
745
Step-by-step explanation:
You want the original number of books in the library if adding 298 children's books increased the fraction of children's books from 2/5 to 4/7.
RatioWe often like to work problems like this in terms of "ratio units." Here, we'll let x represent the number of books in a ratio unit. This means the number of children's books is originally 2x, and the total number of books is originally 5x. Then we have ...
(2x +298)/(5x +298) = 4//7
SolutionCross multiplying gives ...
7(2x +298) = 4(5x +298)
3(298) = 6x . . . . . . . . . . . . . subtract (14x+4(298))
149 = x
745 = 5x . . . . . . the original number of books in the library
There were 745 books in the library at first.
__
Additional comment
If we let x represent the original number of library books, then the arithmetic involves more fractions. You would have an equation like ...
2/5x +298 = 4/7(x +298)
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A controlled study that attempts to understand cause-and-effect relationships is a/an ______.
As the number of trials increases, the accidental error decreases. The probabilities of flipping a head or tail tends to be equal. That means the experimental probability for both head and tail would be very close to 0.5.
As b
find the domain and range of each f(x)^ * = 1 + x ^ 2
The function f(x)* = 1 + x^2 is defined for all real numbers x, so the domain is all real numbers, or (-∞, ∞).
How to explain the domainIn determining the function's output values, one must consider its collection of feasible results to extract the range. Reviewing f(x)* exhibits a minimum value of 1 due to x^2 being perpetually non-negative, while adding another factor merely preserves positivity.
Concurrently as x skyrockets, so too does the value of f(x)* given that approaching infinity generates infinitely larger powers than any constant coefficient subordinated by it. Consequently, the overall range of f(x)* becomes [1, ∞), enwrapping all feasible solutions equivalent or superior to 1.
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who helps me do this
Answer:
1. True
2. false.
3. true
4. false
5. true
Find the distance between the
twee Wise your answer as a mixed number
The distance between the two numbers
\( - 2 \frac{1}{2} - ( - 5 \frac{3}{4} ) = - 2 \frac{1}{2} + 5 \frac{3}{4} \)
\( = 5 \frac{3}{4} - 2 \frac{1}{2} = \frac{23}{4} - \frac{5}{2} \)
\( = \frac{23}{4} - \frac{10}{4} = \frac{23 - 10}{4} = \frac{13}{4} \)
\( = \frac{4 + 9}{4} = \frac{4}{4} + \frac{9}{4} = 1 + \frac{9}{4} = 1 \frac{9}{4} \)
Answer:
\(1 \frac{9}{4} \)
Ok done. Thank to me :>
ANSWER ASAP DONT SEND A FILE WHATS THE TRANSFORMATION??
Answer:
2nd one.
Step-by-step explanation:
help me out with this question .?
1
Step-by-step explanation:
true ya false you say me
Luis deposited $500 into his savings account with a simple interest rate of 3%. He wants to keep his deposit in the bank until he earns $120 in interest. For how many years does Luis need to keep his deposit in the bank?
Answer:
i think 4 or 40
Step-by-step explanation:
PLEASE HELP will give brainly and 10 points Which inequality is represented by the number line graph?
Answer: A
Step-by-step explanation: The dot is a filled-in circle, meaning it has to be A, B, or E. Then, B is saying that the arrow is going left, so that's wrong. E is saying that it is just 6 instead of -6, which leaves us with A.
hope this helps!
please give brainliest!
Use the graph below to answer this question:
Find the average rate of change for the
given function from x = -1 to x = 2
4/3
- 4/3
- 3/4
3/4
PLEASE ANSWER NUMBER 2
Adding Rational Expressions
Simplify the following sum, and show all work please.
The solution of sum of expression is,
⇒ (x² - x + 1) / (x - 1)(x - 2)
We have to given that;
Expression is,
⇒ [x /(x² - x - 2)] + [ (x - 1) / (x - 2) ]
We can simplify as;
⇒ [x / (x² - x - 2)] + [(x - 1) / (x - 2)]
⇒ [x / (x² - 2x + x - 2)] + [(x - 1) / (x - 2)]
⇒ [x / [ x (x - 2) + 1(x - 2)] + [(x - 1) / (x - 2)]
⇒ [x / (x - 1) (x - 2)] + [(x - 1) / (x - 2)]
⇒ [1/(x - 2)] [ x/(x - 1) + (x - 1) ]
⇒ [1 / (x - 2)] × [ x + (x - 1)²] / (x - 1)
⇒ [x + (x - 1)² ] / [(x - 1) (x - 2)]
⇒ (x + x² - 2x + 1) / (x - 1) (x - 2)
⇒ (x² - x + 1) / (x - 1) (x - 2)
Hence, The solution of sum of expression is,
⇒ (x² - x + 1) / (x - 1) (x - 2)
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write 358.41 x 10^5 in standard form
35841000 is not correct answer
give real answer
Answer:
3.5841 x 10^7
Step-by-step explanation:
358.41 / 100
and add 2 powers of 10