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MATH SOLVE
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The playground at a shopping mall is a triangle with a perimeter of 48 feet. The lengths of two sides are 19 feet and 14 feet. How long is the third side
General
3 months ago
Suppose the time it takes for a purchasing agent to complete an online ordering process is normally distributed with a mean of 8 minutes and a standard deviation of 2 minutes. Suppose a random sample of 25 ordering processes is selected. What is the standard deviation of the sampling distribution of mean times? (Round to one decimal place.)
General
3 months ago
Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test the hypothesis that the proportion of one-person households exceeds 0.23. The hypotheses of interest are given below: H0: p ≤ 0.23 Ha: p > 0.23 A random sample of 136 households found that 43 consisted of one person. The Census Bureau would like to set α = 0.05. What is the value of the test statistic for this scenario? Round your answer to two decimal places.
General
3 months ago
The distribution of heights of 6-year-old girls is approximately normally distributed with a mean of 46.0 inches and a standard deviation of 2.7 inches. Aaliyah is 6 years old, and her height is 0.96 standard deviation above the mean. Her friend Jayne is also 6 years old and is at the 93rd percentile of the height distribution. At what percentile is Aaliyah’s height, and how does her height compare to Jayne’s height?
General
3 months ago
Determine whether the function f(x) = 3x4 is even or odd. The function is even because f(x) = f(−x). The function is odd because f(x) = f(−x). The function is even because −f(x) = f(x). The function is odd because −f(x) = f(x).
General
3 months ago
Select the best answer. Suppose that 35% of the registered voters in a state are registered as Republicans, 40% as Democrats, and 25% as Independents. A newspaper wants to select a sample of 1000 registered voters to predict the outcome of the next election. If they randomly select 350 Republicans, randomly select 400 Democrats, and randomly select 250 Independents, did this sampling procedure result in a simple random sample of registered voters from this district? (a) Yes, because each registered voter had the same chance of being chosen. (b) Yes, because random chance was involved. (c) No, because not all registered voters had the same chance of being chosen.(d) No, because there were different number of registered voters selected from each party. (e) No, because not all possible groups of 1000 registered voters had the same chance of being chosen.
General
3 months ago
Alicia can row 6 miles downstream in the same time it takes her to row 4 miles upstream. She rows downstream 3miles/hour faster than she rows upstream. Find Alicia’s rowing rate each way. Round your answers to the nearest tenth, if necessary.a. 4 mi/h downstream, 2.7 mi/h upstreamb. 20 mi/h downstream, 13.3 mi/h upstreamc. 2.7 mi/h downstream, 4 mi/h upstreamd. 9 mi/h downstream, 6 mi/h upstream
General
3 months ago
Given the following system of equations: −x + y = 2 2x + 4y = 32 What action was completed to create this new equivalent system of equations? −x + y = 2 x + 2y = 16
General
3 months ago
Elissa's parents are always telling her to turn off the lights when she leaves a room. A light bulb requires 75 watts to run when it is turned on. The fixture in Elissa's room requires four of these bulbs. Elissa's parents estimate that she leaves the lights on unnecessarily for 2.5 hours per day. How many watt-hours of electricity are used by these bulbs during 2.5 hours?
General
3 months ago
Which table represents an exponential function of the form y = b^k when 0 < b < 1?please answer quickly
General
3 months ago
A right square pyramid is pictured below. if l is 15 cm and x is 18 cm, what is the surface area of the pyramid?
General
4 months ago
A rectangular pool 6 meters by 4 meters is surrounded by a walkway of width x meters. At what value of x will the area of the walkway equal the area of the pool?
General
4 months ago
Find an explicit formula for the arithmetic sequence − 45 , − 30 , − 15 , 0 , . . . −45,−30,−15,0,...minus, 45, comma, minus, 30, comma, minus, 15, comma, 0, comma, point, point, point.
General
4 months ago
solve the equation 2x+3=5×-3
General
4 months ago
Celeste is going to summer camp. The table shows the cost of items she willneed to purchase with the camp logo. She needs to buy four of each item.Which of the following expressions represents the total cost of the items?Select all that apply.4(14.75)48.00) + 4.50 +2.254(8) + 4(4.50) + 4(2.25)48.00 +4.50 +2.25)
General
4 months ago
A health blog with 4,800 subscribers is doubling every 3 years. What will be thenumber of subscribers after 12 years.
General
4 months ago
Tina's aquarium has a capacity of 40 gallons or water. She plans to stock her aquarium with 0.25 inches of fish per quart of capacity. Mollies are 2 inches in length. How many mollies can she have in the aquarium?
General
4 months ago
Sammy plans on a discounted loan with an advertised interest rate of 9%. Sammy will pay $153 in interest on the $1700 loan. How much will Sammy receive at the start of this loan?
General
4 months ago
Write a linear factorization of the function. f(x) = x^4 + 4x^2
General
4 months ago
What concept describes how quickly an investment increases in value when interest is paid not only on the original amount invested, but also on the accumulated interest payments?
General
4 months ago
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