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Saturn’s rings span up to about 3/4 of the distance between the Earth and its moon. If Saturn’s rings span up to 179,000 kilometers, what is the distance between Earth and its moon?
General
4 months ago
find the value of. x part 1c
General
4 months ago
Find the length of diagonal HJ. Round to the nearest hundredth.
General
4 months ago
Kelly, Laura, and Tia so boxes of cookies for a fundraiser. Kelly sold 15 boxes less than Laura. Tia so twice as many boxes as Kelly. If they sold 83 boxes of cookies in total, how many boxes did each girl sell?
General
4 months ago
A test to determine whether a certain antibody is present is 99.6% effective. This means that the test will accurately come back negative if the antibody is not present (in the test subject) 99.6% of the time. The probability of a test coming back positive when the antibody is not present (a false positive) is 0.004. Suppose the test is given to four randomly selected people who do not have the antibody. (a) What is the probability that the test comes back negative for all four people? (b) What is the probability that the test comes back positive for at least one of the four people?
General
4 months ago
PLEASE HELP!!! What is the remainder when f(x) = x2 + 14x − 8 is divided by (x − 4)?
General
4 months ago
Suppose box A contains 2 red balls and 4 blue balls and box B contains 6 red balls and 3 blue ball. An experiment consists of drawing a ball from box A and then putting it in box B. A ball is then drawn from box B.What is the probability the first ball drawn was red given the second ball drawn was red?
General
4 months ago
The level of pesticides found in the blubber of whales is a measure of pollution in regions of the ocean. A sample of eight male minke whales in the West Greenland area of the North Atlantic finds a sample mean pesticide level of 357 nanograms per gram (ng/g) of blubber. Suppose that the concentration of pesticides in all such whales varies Normally with a known population standard deviation of 50 ng/g. A 90% confidence interval to estimate the mean level of pesticide in minke whales in this region is:
General
4 months ago
A company has determined that when x hundred dulcimers are built, the average cost per dulcimer can be estimated by C(x)=0.2x^2-0.6x+2.250, where C(x) is in hundreds of dollars. What is the minimum average cost per dulcimer and how many dulcimers should be built to achieve that minimum?
General
4 months ago
A bag contains 3 gold marbles, 6 silver marbles, and 30 black marbles. The rules of the game are as follows: You randomly select one marble from the bag. If it is gold, you win $6, if it is silver, you win $5. If it costs $1 to play, what is your expected profit or loss if you play this game?
General
4 months ago
Jason eats 10 ounces of candy in 5 days.a. How many pounds does he eat per day? (Recall: 16 ounces = 1 pound)b. How long will it take Jason to eat 1 pound of candy?
General
4 months ago
An automobile manufacturing plant produced 30 vehicles today: 10 were sedans, 9 were vans, and 11 were trucks. Plant managers are going to choose two of these vehicles for thorough inspection. The first vehicle will be chosen at random, and then the second vehicle will be chosen at random from the remaining vehicles. What is the probability that two trucks will be selected?
General
4 months ago
Galactic Rotation Speed. We are located about 27,000 light-years from the galactic center and we orbit the center about once every 230 million years. How fast are we traveling around the galaxy, in km/hr? We are traveling at about 800,000 km/hr
General
4 months ago
(MC 02.03) If parallelogram ABCD was reflected over the y-axis, reflected over the x-axis, and rotated 180°, where would point A' lie? Parallelogram formed by ordered pairs A at negative 4, 1, B at negative 3, 2, C at 0, 2, D at negative 1, 1.
General
4 months ago
100 points! Will mark Brainiest! Which graph represents the function?h(x)={x if x<−1−x if x≥−1
General
4 months ago
The square represents a scale model that was created by using a factor of 4.Which is true of the measures of the sides of the original square?Each side of the original square is the length of each side of the scale model.Each side of the original square is 4 times the length of each side of the scale model.Each side of the original square is the same length as each side of the scale model.Each side of the original square is 4 feet less than the scale model.
General
4 months ago
Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return trip, it takes 5 hours. If x = the rate of the boat in still water and y = the rate of the current, which of the following expressions represents the rate of the boat going with the current?
General
4 months ago
Suppose that 25% of all students who have to buy a physical copy of the 9th Edition of our textbook want a new copy (the "successes"), whereas the other 75% want a used copy. Each chooses independently of the others. Consider randomly selecting 30 purchasers. a) What is the expected value of the number of students who want a new copy of the book? Please write out all formulas in your work. Answer:
General
4 months ago
You are the manager of The Copy Shop. For your big copy machine, the probability a copy of a document will have a defect is 0.1. ("A defect" means one or more defects.) What is the probability that the 7th copy will be the first one with a defect? X = number of the copy that is the first one with a defect a. X ~ binomial b. X ~ negative binomial c. X ~ hypergeometric d. X ~ Poisson
General
4 months ago
A turtle walks 7/8 of a mile in 50 minutes. What is the unit rate when the turtle’s speed is expressed in miles per hour?a. To find the turtle’s unit rate, Meredith wrote the following complex fraction. Explain how the fraction 5/6 was obtained.b. Determine the unit rate when the turtle’s speed is expressed in miles per hour.
General
4 months ago
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