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MATH SOLVE
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Question Part Points Submissions Used Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about x = 4. y = 3x4, y = 0, x = 2.
General
4 months ago
Is this relationship between cups of milk and cups of cereal be described by a constant ratio?
General
4 months ago
Given f(x)=3x+12, what is f(f^-1(3))
General
4 months ago
Can someone plz help me on this I really need help
General
4 months ago
The volume Vr (in cubic meters) of a spherical balloon with radius r meters is given by =Vr43πr3. The radius Wt (in meters) after t seconds is given by =Wt+7t3. Write a formula for the volume Mt (in cubic meters) of the balloon after t seconds. It is not necessary to simplify.
General
4 months ago
Ryan spent a dollar on a Tri-State Megabucks ticket, enticed by a big jackpot. Ryan chose six different numbers from 1 to 40, inclusive, hoping that they would be chosen later during the TV drawing. Sad to say, none of Ryan’s choices were drawn. What was the probability of this happening? The order in which numbers are drawn is of no significance.
General
4 months ago
A regression model involved 5 independent variables and 126 observations. The critical value of t for testing the significance of each of the independent variable's coefficients will have _____.
General
4 months ago
An inlet pipe can fill a swimming pool in 9 hours and an outlet pipe can empty the pool in 12 hours. Through an error, both pipes are left open. How long will it take to fill te pool?
General
4 months ago
Simplify this please. (29)^3
General
4 months ago
2) -2(7n – 6) +n=-3 - 8n
General
4 months ago
David had 75 filters to post around town. Last week, he posted 2/5 of them. This week he posted 2/3 of the remaining filters. How many filters has he not posted?
General
4 months ago
What is the slope intercept form of (3, -2) and (0,4)
General
4 months ago
A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Portland. The study was performed at the end of the school year and asked each if they had used steroids at any point in the last school year. Of the upperclassmen, 23 claimed to have used steroids in the last school year, and of the underclassmen, 21 claimed to have used steroids. Run a 95% confidence interval to test for a significant difference in the proportions of students who used steroids. Enter the confidence interval - round to 3 decimal places.
General
4 months ago
Suppose a certain candy is made up of red, yellow, green, blue, and orange pieces. a) If you draw one piece of candy, are the events of getting a green one and getting a yellow one disjoint, independent, or neither? b) Assume you have an infinite supply of these candy pieces from which to draw. If you draw two pieces one right after the other, are the events of getting a blue on the first and a blue on the second disjoint, independent, or neither? c) Can disjoint events ever be independent? Explain.
General
4 months ago
What problem is being modeled?
General
4 months ago
10. The perimeter of a parallelogram is 72 meters. The width of theparallelogram is 4 meters less than its length. Find the length and thewidth of the parallelogram.
General
4 months ago
A hare and a tortoise compete in a race over a course 1.50 km long. The tortoise crawls straight and steadily at its maximum speed of 0.290 m/s toward the finish line. The hare runs at its maximum speed of 7.55 m/s toward the goal for 1.200 km and then stops to tease the tortoise. How close to the goal can the hare let the tortoise approach before resuming the race, which the tortoise wins in a photo finish? Assume that, when moving, both animals move steadily at their respective maximum speeds.
General
4 months ago
Timber beams are widely used in home construction. When the load (measured in pounds) per unit length has a constant value over part of a beam, the load is said to be uniformly distributed over that part of the beam. Consider a cantilever beam with a uniformly distributed load between 90 and 105 pounds per linear foot. a. What is the probability that a beam load exceeds 99 pounds per linear foot? b. What is the probability that a beam load is less than 92 pounds per linear foot? c. Find a value L such that the probability that the beam load exceeds L is 0.4.
General
4 months ago
A robotic insertion tool contains 17 primary components. The probability that any component fails during the warranty period is 0.01. Assume that the components fail independently and that the tool fails if any component fails. What is the probability that the tool fails during the warranty period? Round your answer to four decimal places (e.g. 98.7654).
General
4 months ago
New York State’s "Quick Draw" lottery moves right along. Players choose between one and ten numbers from the range 1 to 80; 20 winning numbers are displayed on a screen every four minutes. If you choose just one number, your probability of winning is 20/80, or 0.25. Lester plays one number seven times as he sits in a bar. What is the probability that all seven bets lose?
General
4 months ago
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