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General
2 months ago
A Simple random sample of 100 8th graders at a large suburban middle school indicated that 84% of them are involved with some type of after school activity. Find the 98% confidence interval that estimates the proportion of them that are involved in an after school activity. a) (0.755, 0.925) b) (0.755, 0.725) c) (0.805, 0.810) d) (0.675, 0.925) e) (0.655, 0.875) f) None of the above
General
2 months ago
Alyssa and Caleb both drove 210 miles to the beach in separate cars. They left at the same time. They both drove at constant speed. Alyssa drove 105 miles in 3.5 hours. Caleb drove 168 miles is 4 hours. Who arrived at earlier? How much earlier?
General
2 months ago
Write an equation of the line in slope-intercept form
General
2 months ago
Which expression is a perfect cube?
General
2 months ago
If m<VST = (5x + 23) and m<VUT =(8x - 49), find m<SVT
General
2 months ago
10. Mrs. Cugini collected data on the hand span length and height of each of herAlgebra i students. The graph below represents the scatterplot of the data for one classPart A: What is the slope of the graph?Part B: What does the slope represent?
General
2 months ago
Given the equation square root of quantity 3x plus 4 end quantity equals 5, solve for x and identify if it is an extraneous solution. 7; solution is not extraneous 7; solution is extraneous four thirds; solution is not extraneous four thirds; solution is extraneous
General
2 months ago
The total height of the Statue of Liberty and its pedestal is 153 feet more than the height of the statue. Write and solve an equation to find the height h (in feet) of the statue. An equation is blank = 305 The height of the statue is blank feet
General
2 months ago
There are three urns that each contain 10 balls. The first contains 3 white and 7 red balls, the second 8 white and 2 red, and the third all 10 white. Each urn has an equal probability of being selected. An urn is selected and a ball is drawn and replaced, and then another ball is drawn from the same urn. Suppose both are white. What are the following probabilities? (Round your answers to four decimal places.)(a) The first urn was selected.(b) The second urn was selected.
General
2 months ago
You decide to market your own custom computer software. You must invest $3,255 for computer hardware, and spend $2.90 to buy and package each disk. If each program sells for $13.75, how many copies must you sell to break even? 196 copies 301 copies 300 copies 195 copies
General
2 months ago
Ron and Kathy are ticket sellers at their class play, Ron handling students tickets that sell for $2.00 each and Kathy selling adult tickets for $4.50 each. if their total income for 364 tickets was $1175.50, how many did Ron sell?
General
2 months ago
An arithmetic series contains 20 numbers. The first number is 102. The last number is 159. Which expression represents the sum of the series?
General
2 months ago
PLEASSEE HELPP!!Select the correct answer from each drop-down menu.__ ___ __AB is dilated by a scale factor of 3 to form A'B'. Point O, which lies on AB, is the center of dilation. __ ___ ___ The slope of AB is 3. The slope of A'B' is ____. A'B' ____through point O.1st Blank : 1/3, -1/3, 3, -3, 9, -92nd Blank: passes, does not pass.
General
2 months ago
Which equation is the inverse of y= 100 - x^2
General
2 months ago
What part of the coordinate plane is equidistant from the points A(-3,2) and B(3,2)? Explain. Please show all work.
General
2 months ago
PLEASE HELP, 46 PTS!!!! ANSWER QUICKLY AND WITH FULL REPONCE AND SHOW UR WORK!!2. A pool company is trying out several new drains. Drain A empties a pool at a rate of 2 gal/min. Drain B empties a pool at a rate of 5 gal/min. One pool has 108 gal of water in it. Write an equation for each drain that shows the amount of time it takes to empty the pool. Then solve each equation showing your work.Answer: 2. The three salespeople for a local advertising firm are Lola, Ahmed, and Tommy. Lola sold $2030 in ads, Ahmed sold $1540, and Tommy sold $1800.(a) What fraction of the total sales did each salesperson sell?(b) A $100 bonus was awarded to the three salespeople, which they had to share. It was awarded so that each salesperson received the same fraction of $100 as he or she sold of the total sales. How much did each person receive? Round to the nearest whole cent.Answer:
General
2 months ago
If it is Independence Day, then it is the 4th of July. Identify the hypothesis and the conclusion of the conditional statement. hypothesis: it is not Independence Day; conclusion: it is not the 4th of July hypothesis: it is not the 4th of July; conclusion: it is not Independence Day hypothesis: it is the 4th of July; conclusion: it is Independence Day hypothesis: it is Independence Day; conclusion: it is the 4th of July
General
2 months ago
What are the possible numbers of positive, negative, and complex zeros of f(x) = x6 + x5 + x4 + 4x3 − 12x2 + 12?
General
2 months ago
The two-way table shows the results of a recent study on the effectiveness of the flu vaccine. Let N be the event that a person tested negative for the flu, and let V be the event that the person was vaccinated.
General
2 months ago
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