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MATH SOLVE
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A coffee pot in the form of a circular cylinder of radius 2 in. is being filled with water flowing at a constant rate. If the water level is rising at the rate of 0.9 in./s, what is the rate (in in3/s) at which water is flowing into the coffee pot? (Round your answer to one decimal place.)
General
2 months ago
A company sells doughnuts. They incur a fixed cost of $23000 for rent, insurance, and other expenses. It costs $0.1 to produce each doughnut. The company sells each doughnut for $0.2. Part A. Construct a linear model that describes their total costs, C, as a function of the number of doughnuts, x, they produce.
General
2 months ago
The exponential model A=58.7e^0.02t describes the population,A, of a country in millions, t years after 2003. Use the model to determine when the population of the country will be 89 million.
General
2 months ago
A company that manufactures small canoes has a fixed cost of $20,000. It cost $40 to produce each canoe. The selling price is $80 per canoe. (In solving this exercise, let x represent the number of canoes produced and sold.) 1. Write the cost function. 2. Write the revenue function. 3. Determine the break-even point. Make sure your answer is an ordered pair.4. This means that when the company produces and sells the break-even number of canoes: a. there is less money coming in than going out b. the money coming in equals the money going out c. there is more money coming in than going out d. there is not enough informationPlease explain how to work all of this out.
General
2 months ago
Three-wheel cars made in North Edsel are sold for 5000 pounds. Four-wheel cars made in South Edsel are sold for 10,000 marks. The real exchange rate between North and South Edsel is four three-wheel cars for three four-wheel cars. The nominal exchange rate between the two countries is _______
General
2 months ago
PLEASE HELP Answer all three of the questions below.1. Write an equivalent expression to 2 + 3 + 5 + 6 by combining like terms.2. Find the sum of (8a – 2b - 4) and (3b − 5).3.Write the expression in standard form: 4(2a) + 7(−4b) + (3 ∙ c ∙ 5).
General
2 months ago
A roller coaster climbs 120 feet from ground level then drops 75 feet before climbing another 105 feet. How far above ground is the roller coaster now?
General
2 months ago
Which simplified expression matches the set of tiles shown?-x² – x+2x² - x + 2-x²+x+2x2+x+2
General
2 months ago
A rectangle is drawn on a coordinate grid. The equation for one side of the rectangle is 2x – 5y = 9. Which could be the equation of another side of the rectangle?
General
2 months ago
(1 point) The effectiveness of a new bug repellent is tested on 18 subjects for a 10 hour period. Based on the number and location of the bug bites, the percentage of exposed surface area protected from bites was calculated for each of the subjects. Assume the population is normally distributed. The results were as follows: x¯¯¯=92 %, s=8% The new repellent is considered effective if it provides a percent repellency of more than 89%. Using α=0.025, construct a hypothesis test with null hypothesis μ≤0.89 and alternative hypothesis μ>0.89 to determine whether the mean repellency of the new bug repellent is greater than 89% by computing the following: (a)The degree of freedom is df= .
General
2 months ago
**PLEASE HELP ASAP** Betsy is analyzing a quadratic function f(x) and a linear function g(x). Will they intersect? Yes, at positive x-coordinates Yes, at negative x-coordinates Yes, at negative and positive x-coordinates No, they will not intersect
General
2 months ago
True or false: when comparing two populations, the larger the standard deviation, the more dispersion the distribution has, provided that the variable of interest from the two populations has the same unit of measure. choose the correct answer below.a. false, because the larger the standard deviation is, the less dispersion the distribution has.b. true, because the standard deviation is the difference between the largest and smallest observation. when the standard deviation is larger, there is more distance between the largest and smallest observation, and therefore, more dispersion in the distribution.c. true, because the standard deviation describes how far, on average, each observation is from the typical value. a larger standard deviation means that observations are more distant from the typical value, and therefore, more dispersed.d. false, because the standard deviation measures the spread of the distribution, not the dispersion of the distribution.
General
2 months ago
Find the slope of the line that passes through (-95, 31) and (-94, 6).
General
2 months ago
Andy is buying carpet squares for his living room. the length of the room is 20 feet, and the width is 16 feet. each carpet square covers 4 square feet. how many carpet squares will andy need to purchase to cover the room
General
2 months ago
A basketball player makes 40% of his shots from the free throw line. suppose that each of his shots can be considered independent and that he throws 3 shots. let x = the number of shots that he makes. what is the probability that he makes 2 shots or less?
General
2 months ago
You are reducing a map of dimensions 2 ft by 3 ft to fit on a piece of paper 8 in. by 10 in. what are the dimensions of the largest possible map that can fit on the page?
General
2 months ago
You are going to movies friday night (not a matinee). which of the theaters will cost the least, if you intend to have soda and popcorn? theater a theater b theater c adults $6.25 $7.25 $5.25 children $3.50 $3.75 $4.25 soda $2.00 $2.00 $2.50 popcorn $2.50 $2.00 $2.50
General
2 months ago
The sales of homes in a new development have been increasing. In January, 8 homes were sold, in February, 12 homes were sold. In March, 16 homes were sold. This pattern continued for the remainder of the year.What is the explicit rule that can be used to find the number of homes sold in the nth month of the year?an=4n−4an=−4n−4an=4n+4an=−4n+4
General
2 months ago
The diagram below shows the dimensions of a triangular park built in a new housing development. Two side lengths and one angle measure are given.What is the measure of angle X? Round the answer to the nearest tenth.
General
2 months ago
A surveyor, Toby, measures the distance between two landmarks and the point where he stands. He also measured the angles between the landmarks in degrees. What is the distance, x, between the two landmarks? Round the answer to the nearest tenth.
General
2 months ago
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