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MATH SOLVE
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The data points represent the number of swimmers atCity Pool compared to the outside temperature.(66, 8), (71, 23), (72, 16), (75, 30), (78, 35), (80, 24),(82, 37), (86, 37), (87, 42), (90, 50)Use the regression equation to determine how manyswimmers will be at the pool when the temperature is88°F? Round to the nearest whole number.Swimmers
General
4 months ago
The distribution of resting pulse rates of all students at Adams High School was approximately normal with mean \mu = 80μ=80mu, equals, 80 beats per minute and standard deviation \sigma = 9σ=9sigma, equals, 9 beats per minute. Only students whose resting pulse rates are in the lower 40\%40%40, percent are eligible join the weight-lifting club. What is the maximum resting pulse rate for students who are eligible to join the weight-lifting club?
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4 months ago
The equation below represents the trend line of a scatter plot showing the hours spent studying versus science test scores.y - 6.5x+424The equation below represents the trend line of a scatter plot showing the hours spent studying versus math test scores.y = 7.2x+34.7If a student does not study for either test, on which test should the student expect the higher score?o on the science test because the rate of change is greaterO on the math test because the rate of change is greateron the science test because the y-intercept is greatero on the math test because the y-intercept is greater
General
4 months ago
The formula for the volume of a cone is given below. Find the rate of change of the volume for each of the radii given below if dr/dt is 9 inches per minute and h = 24r.V = (1/3)πr2ha) r = 5 in (b) r = 17 in
General
4 months ago
The formula for finding the distance traveled, based on speed and time, is D=RTD=RT , whereD is distanceR is rate (speed) T is timeUnits must be consistent. If the unit for D is miles and the unit for T is minutes, what must the units for R be? Solve this formula for R.R = If a bicyclist rides for 160 minutes at an average speed of 17 miles per hour, how far was the ride, to 1 decimal place? miles.At what speed must a bicyclist ride to cover 12 miles in 1.5 hours, to 1 decimal place? miles/hour.
General
4 months ago
Find the slope-intercept equation for the line with the indicated slope and y-intercept. Slope-3; y-intercept (0,31)
General
4 months ago
Select the equation that has a constant of proportionality:A. 16 + x = yB. 16x =yC. 16x -11 = yD. 16x + 15 = y
General
4 months ago
A random sample of n measurements was selected from a population with unknown mean mu and standard deviation sigmaequals50 for each of the situations in parts a through d. Calculate a 95% confidence interval for mu for each of these situations. a. nequals40, x overbarequals42 b. nequals300, x overbarequals123 c. nequals155, x overbarequals20 d. nequals155, x overbarequals3.14 e. Is the assumption that the underlying population of measurements is normally distributed necessary to ensure the validity of the confidence intervals in parts a through d? Explain.
General
4 months ago
Suppose a sample of 2329 tenth graders is drawn. Of the students sampled, 489 read at or below the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places. .Using the data, construct the 98% 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade levelupper end point:lower endpoint:
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4 months ago
The frame of a bridge is constructed of triangles, as shown below.A large triangle is made up of 4 smaller triangles within the larger triangle. Vertical line T U cuts the large triangle in half. Lines U S and U V are diagonal from point U and go up to each side. Angle S U T is 45 degrees and angle T V U is 98 degrees. Line segment T V is 20 feet and line segment S U is 14 feet.What additional information could you use to show that ΔSTU ≅ ΔVTU using SAS? Check all that apply. UV = 14 ft and m∠TUV = 45°TU = 26 ftm∠STU = 37° and m∠VTU = 37°ST = 20 ft, UV = 14 ft, and m∠UST = 98°m∠UST = 98° and m ∠TUV = 45°
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4 months ago
In this fulcrum, the weights are perfectly balanced. How far must the fulcrum be located from the 40 lb. weight if the bar is 11 feet long? x (to the nearest tenth) =
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4 months ago
Jose and Sue are playing a board game. If they land on a red or blue square, they lose 1 point. The inequality statement compares the magnitude of their scores at the end of the game. |−2|<|−5| What does the inequality statement show?
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4 months ago
Which of the following is always true about lines of symmetry?A figure can have only one line of symmetry.A line of symmetry divides a shape into two equal parts.A line of symmetry is a vertical line through the middle of a figure.A line of symmetry goes through opposite vertices of a figure.
General
4 months ago
Which of the following statements is not true about reflections? The image faces the same direction as the pre-image. The image is the same shape as the pre-image. The image is the same size as the pre-image. Points on the pre-image are the same distance from the line of reflection as the corresponding points on the image.
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4 months ago
A culture started with 6000 bacteria after 3 hours ot grew to 7200 bacteria Predict how many bacteria will be present after 19 hours
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4 months ago
Rotate the parallelogram 180° clockwise about point Q.A.
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4 months ago
Nelly owns farm land that has an area of 4.2 × 102 acres. Each year, the farm produces 6.72 × 104 bushels of corn. What is the average amount of corn produced per acre represented in scientific notation?A) 2.82 × 107 bushels per acreB) 1.6 × 102 bushels per acreC) 1.6 × 103 bushels per acreD) 2.82 × 106 bushels per acreE) 1.6 × 101 bushels per acre
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4 months ago
Each of the 14 students in the art club needs 4 ounces of paint for a project. The art store sells paint only in 8-ounce bottles. How many bottles of paint does the art club president need to buy for the project?
General
4 months ago
Describe two different sequences of transformations that will map ABCD to EFGH.
General
4 months ago
which equation represents the pattern in the table below?[tex]s = c + 4[/tex][tex]s = 4c[/tex][tex]c = s + 4[/tex][tex]c = 4s[/tex]
General
4 months ago
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