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MATH SOLVE
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General
The first term in a geometric sequence is 54, and the 5th term is 2 / 3. Find an explicit form for the geometric sequence.
General
4 months ago
In tests for intoxication, blood alcohol levels are expressed as percentages by volume. A blood alcohol level of 0.080% by volume means 0.080 mL of ethanol per 100 mL of blood and is considered proof of intoxication. If a person's total blood volume is 5.0 L, what volume of alcohol in the blood gives a blood alcohol level of 0.100 % by volume?
General
4 months ago
If 2, a, b, −54 forms a geometric sequence, find the values of a and b.
General
4 months ago
From a sample with n=20, the mean number of televisions per household is 2 with a standard deviation of 1 television. Using Chebychev's Theorem, determine at least how many of the households have between 0 and 4 televisions. At least nothing of the households have between 0 and 4 televisions.
General
4 months ago
2. A pilot can travel 448 miles with the wind in the same amount of time as 368 miles against the wind. Find the speed of the wind if the pilot’s speed in still air is 255 miles per hour.
General
4 months ago
what is a1? what is d? what’s the equation? what is a7? what is a59?
General
4 months ago
1. If the same number is added to the numerator and subtracted from the denominator of 23/12, the resulting fraction is equivalent to the reciprocal of 2/3. What is the number?
General
4 months ago
Select all the correct locations on the tables.A zoo records the weight of a newborn elephant as 200 pounds. Each month, the elephant's current weight increases exponentially by half theprevious month's weight. Which equation can be solved to determine the number of months, it will take for the elephant to weigh 675 pounds?How many months will it take?
General
4 months ago
what is the greatest common factor of 15n^5 30n^3 and 45n^2
General
4 months ago
Raoul needs $200 to start a snow cone stand for this hot summer. He borrows the money from a bank that charges 4%simple interest per year.b. Write a formula for how much he will owe after t years
General
4 months ago
American General offers a 7-year ordinary annuity with a guaranteed rate of 6.35% compounded annually. How much should you pay for one of these annuities if you want to receive payments of $10,000 annually over the 7-year period?
General
5 months ago
Based on meteorological data for the past century, a local TV weather forecaster estimates that the region’s average winter snowfall is 23'', with a margin of error of {2 inches. Assuming he used a 95% confidence interval, how should view-ers interpret this news? Comment on each of these statements.a. During 95 of the past 100 winters, the region got between 21" and 25" of snow. b. There 's a 95% chance the region will get between 21" and 25" of snow this winter. c. There will be between 21" and 25" of snow on the ground for 95% of the winter days. d. Residents can be 95% sure that the area's average snowfall is between 21" and 25". e. Residents can be 95% confident that the average snowfall during the past century was between 21" and 25" per winter.
General
5 months ago
A country has two political parties, the Demonstrators and the Repudiators. Suppose that the national senate consists of 100 members, 44 of which are Demonstrators and 56 of which are Repudiators. (a) How many ways are there to select a committee of 10 senate members with the same number of Demonstrators and Repudiators? (b)Suppose that each party must select a speaker and a vice speaker. How many ways are there for the two speakers and two vice speakers to be selected?
General
5 months ago
During a recent drought, a water utility in a certain town sampled 100 residential water bills and found out that 73 of the residences had reduced their water consumption over that of the previous year. Find a 95% confidence interval for the proportion of residences that reduced their water
General
5 months ago
Determine whether the lines L1:x=18+6t,y=7+3t,z=13+3t and L2:x=−14+7ty=−12+5tz=−8+6t intersect, are skew, or are parallel. If they intersect, determine the point of intersection; if not leave the remaining answer blanks empty.
General
5 months ago
Determine whether or not the random variable X is a binomial random variable. If so, give the values of n and p. If not, explain why not. a. X is the number of dots on the top face of fair die that is rolled. b. X is the number of defective parts in a sample of ten randomly selected parts coming from a manufacturing process in which 0.02% of all parts are defective.
General
5 months ago
Discrete MathA coin is flipped four times. For each of the events described below, express the event as a set in roster notation. Each outcome is written as a string of length 4 from {H, T}, such as HHTH. Assuming the coin is a fair coin, give the probability of each event.( a ) The first and last flips come up heads.( b ) There are at least two consecutive flips that come up heads.( c) There are at least two consecutive flips that are the same
General
5 months ago
Suppose a basketball player is practicing shooting, and has a prob-ability .95 of making each of his shots. Also assume that his shots are in-dependent of one another. Using the Poisson distribution, approximate theprobability that there are at most 2 misses in the first 100 attempts
General
5 months ago
consider the parabola with a focus at the point (0,-3) and directrix y=2 . which two equations can be used to correctly relate the distance from the focus and the directrix to any point (x,y) on the parabola ?
General
5 months ago
Usually, Dolores has to stock the shelves by herself and it takes her 7.2 hours. Today Camille helped Dolores and they were able to finish the task in 2.8 hours. How long would it have taken Camille if she were working alone?
General
5 months ago
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