09/24/21

k is the midpoint of JL; JK=2x+7, KL=4x+1 find x and JL equation steps and answers please
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09/24/21

The distribution of the number of requests is bell-shaped and has a mean of 54 and a standard deviation of 11.
The physical plant at the main campus of a large state school receives daily requests to to replace lightbulbs. The distribution of the number of requests is bell-shaped and has a mean of 54 and a... more
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09/24/21

Quadratic Equations
Use the Pythagorean Theorem and the square root property to solve the following problem. Express your answer in simplified radical form. Then find a decimal approximation to the nearest tenth.A... more
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09/24/21

95% Rule Statistics

Use the 95% rule and the fact that the summary statistics come from a distribution that is symmetric and bell-shaped to find an interval that is expected to contain about 95% of the data values.A... more
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09/23/21

∠A and \angle B∠B are complementary angles. If m\angle A=(x-15)^{\circ}∠A=(x−15) ∘ and m\angle B=(x+3)^{\circ}∠B=(x+3) ∘ , then find the measure of \angle B∠B.
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09/22/21

Find the coordinates of the point 7/10 of the way from A to B. A (-3,-8) B (9,5)
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09/20/21

Points P, Q, R,and S are collinear. Point Q is between P and R, R is between Q and S, and PQ = RS. If PS=28 and PR=21, what is the value of QR?
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09/20/21

If the two spinners shown are each spun once, what is the probability that the sum of the two numbers is either even or a multiple of 3?
Spinner 1 has: (1, 2, 3, 4, 5, 6)Next spinner has: (1, 2, 3, 4, 5, 6, 7, 8)Been stuck on this problem for a long time. I know the answer but I have no idea how the textbook got there.
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09/16/21

Statistics and Probability

In how many ways can a single card drawn from a standard 52 card deck, if a card is other than a heart
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09/13/21

Evaluate 3z when z=9z
I cant get the correct answer
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09/10/21

Find the midpoint of the line segment joining the points ​R(2​,3​) and ​S(-3​,6​).
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09/09/21

Probability question
the Smiths have two children, At least one of them is a boy. What is the probability that both children are boys?
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09/08/21

probability statistics
Suppose a jar contains 13 red marbles and 36 blue marbles. If 2 marbles are randomly chosen from the jar at the same time, find the probability that both marbles are red. Round your answer to four... more
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09/08/21

A basket contains 4 green balls 3 black balls and two white balls what is the probability of picking a green ball and a white ball
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09/08/21

Normal distribution
A brisk walk at 5 miles per hour burns an average of 320 calories per hour. If the standard deviation of the distribution is 8 calories/hour, find the percentage of people who walk at 5 miles per... more
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09/06/21

Please see below Statistics

A group of people were asked if life exists elsewhere in the galaxy. 286 responded "Yes", and 499 responded "No". Find the probability that if a person is chosen at random, the person believes life... more
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09/05/21

Help me solve this problem
A diesel train made a trip to the outer-most station and back. The trip there took 12 hours and the trip back took 15 hours. It averaged 7 km/h faster on the trip there than on the return trip.... more
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09/05/21

Find each probability.
A bag of candy contains 3 lollipops, 8 peanut butter cups, and 4 chocolate bars. A piece of candy is randomly drawn from the bag. Find each probability. P(peanut butter cup) P(lollipop or peanut... more
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09/05/21

How to solve the below question ? Which formula is required?
The amount of hot chocolate to dispensed in the paper cups of a vending machine is normally distributed with a mean of 4.5 ounces and a standard deviation of 0.2 ounces what percent of all the... more
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09/03/21

A survey found that 10% of people believe that they have seen a UFO. Choose a sample of 13 people at random. Find the probability that 1) At least 3 people believe that they have seen a UFO
A survey found that 10% of people believe that they have seen a UFO. Choose a sample of 13 people at random. Find the probability that1) At least 3 people believe that they have seen a UFO2.) 5 or... more
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08/30/21

two garden plots are to have the same area. 9ne is a square and one is rectangular. the rectangular plot is 4 meters wide and 16 meters long. how large is one side of the square garden plot in meters?
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08/29/21

For each sets of the data find the:
find the mean, median, mode, range, first quartile, second quartile, IQR and sigmaThe Number of Hours Jim Sleeps Each week:36, 37, 38, 34, 30, 28, 28, 39, 40, 45
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08/24/21

Algebra: system of equations
Assume the system of equations:a+b=p2b+c=q2a+c=r2I don't really see how one geta=(p2+r2-q2)/2
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08/22/21

Write the slope-intercept form (y = mx + b) for the linear equation with a slope of 0 and containing the point (-9, -7). Show all work.
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08/22/21

Student T Distribution question: Explain how P (t2 < ‐2.92) = 0.05 ?
Is it because of P (t2 < -2.92) being the same as 1 - P (t2 > -2.92), or how?(The degrees of freedom is 2)
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