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MATH SOLVE
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A coin is tossed 40 times and shows heads 23 times. Calculate the experimental probability of the coin showing heads.
General
4 months ago
Find the first six terms of the sequence. a1 = -2, an = 3 • an-1
General
4 months ago
a basketball player attempts 15 baskets in a game he makes 9 of the attempts baskets which ratio describes the number of baskets the player made to the number of baskets the player attempts
General
4 months ago
graph y < 1/3x + 1/2
General
4 months ago
Fill in the two blanks (3a^3 - 5b^3) + __ a^3+__ b^3 = ( a^3 + b^3)
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4 months ago
8 times the difference between a number and 6 is equal to 4 times the number...A. 12B. 4C. 16D. 48
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4 months ago
6 years ago Kelsey open a savings account that earns 1.2% simple interest every year she started the account with $600 and has not touched the account sent how much money is in the account now
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4 months ago
M is the midpoint of PQ. The diameter of a circle O is 13 in. And RM = 4 in.
General
4 months ago
Which of the following describes how to translate the graph y = |x| to obtain the graph of y = |x + 7|? 7 units up 7 units down 7 units left 7 units right
General
4 months ago
what is the rule for the transformation from the smaller polygon to the larger polygon
General
4 months ago
A baseball player hit 60 home runs in a season. Of the 60 home runs, 19 went to right field, 20 went to right center field, 9 went to center field, 10 went to left center field, and 2 went to left field. (a) What is the probability that a randomly selected home run was hit to right field? (b) What is the probability that a randomly selected home run was hit to left field? (c) Was it unusual for this player to hit a home run to left field? Explain.
General
4 months ago
In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6977subjects randomly selected from an online group involved with ears. There were 1337surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution.Identify the null hypothesis and alternative hypothesis.
General
4 months ago
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 95 people in the 18-21 age bracket and finds that 81 of them respond and 14 refuse to respond. When 247 people in the 22-29 age bracket are contacted, 215 respond and 32 refuse to respond. Assume that 1 of the 342 people is randomly selected. Find the probability of getting someone in the 22-29 age bracket or someone who refused to respond.
General
4 months ago
Running at their respective constant rates, Machine X takes 2 days longer to produce w widgets than Machine Y. At these rates, if the two machines together produce 54w widgets in 3 days, how many days would it take Machine X alone to produce 2w widgets?
General
4 months ago
Problem Page Bob is driving to Miami. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes). Bob has 62 miles to his destination after 16 minutes of driving, and he has 52.4 miles to his destination after 28 minutes of driving. How many miles will he have to his destination after 42 minutes of driving?
General
4 months ago
Matt wants to measure the height of a tree. He walks exactly 100 feet from the base of the tree and looks up. The angle from his eyes to the top of the tree is 35 ° . If his eye level is 5 feet from the ground, what is the height of the tree?
General
4 months ago
Sixty-eight percent of adults in a certain country believe that life on other planets is plausible. You randomly select five adults and ask them whether they believe that life on other planets is plausible. The random variable represents the number of adults who believe that life on other planets is plausible. Find the mean, variance, and standard deviation of the binomial distribution for the random variable. Interpret the results.
General
4 months ago
3131% of adults say cashews are their favorite kind of nut. You randomly select 12 adults and ask each to name his or her favorite nut. Find the probability that the number who say cashews are their favorite nut is (a) exactly three, (b) at least four, and (c) at most two. If convenient, use technology to find the probabilities.
General
4 months ago
Solve this to mathematical equation to me
General
4 months ago
A student wants to estimate the mean score of all college students for a particular exam. First use the range rule of thumb to make a rough estimate of the standard deviation of those scores. Possible scores range from 500 to 2200. Use technology and the estimated standard deviation to determine the sample size corresponding to a 95% confidence level and a margin of error of 100 points. What isn't quite right with this exercise?
General
4 months ago
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