Mathematics

An administrator of a large middle school is installing some vending machines in the school. She wants to know what type of machine would be most popular.
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A bank randomly selected 243 checking account customers and found that 105 of them also had savings accounts ar this same bank. Construct 95% confidence interval for the true proportion of checking account customers who also have savings accounts
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What is the volume of the cylinder when the radius is 9 and the width is 15?
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Angle S measures 137.What type of angle is angle S?Responsesacuteobtuseright
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how many flowers spaced every 6 inches are needed to surround a circular garden with a 18-foot radius?
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A $70,000 mortgage is $629. 81 per month. What was the percent and for how many years?9%, 20 years9%, 25 years7%, 20 years9%, 30 years
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QUESTION 3 2 - 1 Let () . Find the interval (a,b) where y increases. As your answer please input a+b QUESTION 4 Let(x) = x - 6x3 - 60x2 + 5x + 3. Find all solutions to the equation f'(x) = 0. As your answer please enter the sum of values of x for which f() -
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(1 point) Assuming that y is a function of x, differentiate x^6y^9 with respect to x. dy Use D for dy/dx in your answer. d/dx (x^6y^9) =
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One day, Bill at the candy shop sold 210 bottles of cherry soda and grapesoda for a total of $230. 30. If the cherry soda costs $1. 15 and the grapesoda costs $0. 99, how many of each kind were sold?
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Write two numbers that multiply to the value on top and add to the value on bottom.8866++
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Consider a point with rectangular coordinates(x,y).ifx
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Find the magnitude and direction of the vector u =
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Solve for f(-2).f(x) = -3x + 34f(-2) = [?]
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Peter picks one bill at a time from a bag and replaces it,He repeats this process 100 times and records the results inthe table. Peter's ExperimentValue Frequency$1 2814$10 56$20 2Based on the table, which bill has an experimentalprobability of 3 for being drawn from the bag next?
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The temperature rose 9 degreesbetween 11:00 A. M. And 4:00 P. M. yesterday. The temperature at 4:00 P. M. was 87F. Xin Xin used the followingequation to find the temperature tat11:00 A. M. [ + 9 = 87What was the temperature at11:00 AM. ?
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If represents 10%, what is the length of a line segment that is 100%? Explain.
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The edge of a cube-shaped box is 1 yard long. Three students each made an observation about the box. Janae said that the area of each face of the box is 9 square feet. Archie said that the perimeter of each face of the box is 3 feet. Gail said that the volume of the box is 1 cubic yard. Whose observations about the box are correct?
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Use the scatter plot to fill in the missing coordinate of the ordered pair.(,12)
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The ages of the 5 officers for a school club are 18, 18, 17, 16, and 15. The proportion of officers who are youngerthan 18 is 0. 6. The table displays all possible samples of size 2 and the corresponding proportion for each sample,17, 1617, 1516111Sample n = 2 18, 18 18, 17 18, 17 18, 16 18, 16 18, 15 18, 15Sample0 0. 5 0. 5 0. 5 0. 5 0. 5 0. 5ProportionUsing the proportions in the table, is the sample proportion an unbiased estimator?Yes, the sample proportions are calculated using samples from the population. Yes, the mean of the sample proportions is 0. 6, which is the same as the population proportion. No, 0. 6 is not one of the possible sample proportions. No, 70% of the sample proportions are less than or equal to 0. 5.
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For the following exercises, convert the angle measures to degrees. 9/5 b) - /3 (round to two decimal places)
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A basketball coach thinks that as his team progresses through the season, his players are not scoring as many points as they were in the previous weeks. He uses a table to record the number of points that his team scores for the first ten weeks of the season. First drop down box answers( positive,negative, or no correlation) second drop down box (correct or incorrect)
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Round your answer to three decimal places. A car is traveling at 112 km/h due south at a point = kilometer north of an intersection. A police car 5 2 is traveling at 96 km/h due west at a point kilometer due east of the same intersection. At that instant, the radar in the police car measures the rate at which the distance between the two cars is changing. What does the radar gun register? km/h Round your final answers to four decimal places if necessary. Suppose that the average yearly cost per item for producing x items of a business product is 94 C(x) = 11 + The three most recent yearly production figures are given in the table. Year 012 Prod. (x) 7.2 7.8 8.4 Estimate the value of x'(2) and the current (year 2) rate of change of the average cost. x'(2) = ; The rate of change of the average cost is per year. Plate A baseball player stands 5 meters from home plate and watches a pitch fly by. In the diagram, x is the distance from the ball to home plate and is the angle indicating the direction of the player's gaze. Find the rate e' at which his eyes must move to watch a fastball with x'()=-45 m/s as it crosses home plate at x = 0. 05 Player O'= rad/s. Round your answers to the three decimal places. Repo A dock is 1 meter above water. Suppose you stand on the edge of the dock and pull a rope attached to a boat at the constant rate of a 1 m/s. Assume the boat remains at water level. At what speed is the boat approaching the dock when it is 10 meters from the dock? 15 meters from the dock? Isn't it surprising that the boat's speed is not constant? Guid At 10 meters.x'= at 15 meters x'=
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Evaluate the definite integral:(e^z) + 8/ (e^z+8z)^2
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