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MATH SOLVE
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Find the midpoint of the line segment joining the points (10,7) and (negative 2,negative 7).
General
5 months ago
When 2/3 of the garments in the shipment were inspected, 18 of the garments passed inspection and the remaining 2 garments failed. How many of the uninspected garments must pass inspection in order that 90 percent of the garments in the shipment pass?A. 10B. 9C. 8D. 7E. 5
General
5 months ago
The authors of a paper describe an experiment to evaluate the effect of using a cell phone on reaction time. Subjects were asked to perform a simulated driving task while talking on a cell phone. While performing this task, occasional red and green lights flashed on the computer screen. If a green light flashed, subjects were to continue driving, but if a red light flashed, subjects were to brake as quickly as possible. The reaction time (in msec) was recorded. The following summary statistics are based on a graph that appeared in the paper.n = 47 x = 525s = 75(a) Construct a 95% confidence interval for μ, the mean time to react to a red light while talking on a cell phone. (Round your answers to three decimal places.)(b) Suppose that the researchers wanted to estimate the mean reaction time to within 7 msec with 95% confidence. Using the sample standard deviation from the study described as a preliminary estimate of the standard deviation of reaction times, compute the required sample size. (Round your answer up to the nearest whole number.)
General
5 months ago
Six friends create a website. The website earns money by selling banner ads. The site has 5 banner ads. It costs $120 a month to operate the website. A banner add earns 0,005 per click. Write a linear equation that represents the monthly income
General
5 months ago
A cyclist travels 20 miles in the same amount of time it takes a hiker to walk 6 miles. The rate of the cyclist is 7 mph faster than the rate of the hiker. Find the rate Of the cyclist.
General
5 months ago
ninety percent of the ninth grade students at richbartville high school.take algebra. if 450 ninth grade student take algebra, how many ninth grade student are at richbartville high school?
General
5 months ago
Match the following equation to the correct situation.30%(b - 18) = 30%b - 5.4 A. Last month's electricity bill was 5.4 kW-h less than 30% of this month's bill. B. The number of songs available for download from 30% of b artists. C. The number of cups of coffee thrown away by 30% of b senators during 5.4 speeches. D. The amount of chili eaten from 30% of 5.4 less than b bowls.
General
5 months ago
Which sequence of transformations creates a similar but not congruent triangle? (5 points) Rotation and reflection Reflection and translation Translation and rotation Dilation and reflection
General
5 months ago
A salesman used three types of order forms: A, B, C. He used 40 of Form A. Of Form B he used four times as many as Form A plus 1/2 as many as Form C. He used as many of Form C as Form A plus 1/2 as many as Form B. Altogether, how many forms did he use? Clear 0A. 440 B. 200 C. 250 D. 320 E. 500
General
5 months ago
Find the volume of the solid cut from the thick-walled cylinder 1 less than or equals x squared plus y squared less than or equals 2 by the cones z equals plus or minus StartRoot 4 x squared plus 4 y squared EndRoot.
General
5 months ago
ive been asking the same question for weeks... plz answer! A sports club rewards teams based on overall points earned in a season. The data for points are shown in the table, where Low represents the fewest points scored and High represents the highest points scored by a single team member. Team Low High Range Mean Median IQR σTeam D 149 205 56 174.2 168.5 28.75 17.7Team E 185 292 107 228.3 214 57 33.5Team F 128 149 21 139.6 139.5 7.25 4.7Part A: If the club wants to award the team that has the most consistent scoring among its team members, which team should it choose and why? Justify your answer mathematically. (5 points)Part B: If the club wants to award the team with the highest average score, which team should it choose and why? Justify your answer mathematically. (5 points)
General
5 months ago
What is the value of r^2 for the following data to three decimal places
General
5 months ago
9) Which situation is represented by the equation? 6n + 12 = 2n + 36 A) Jerry and Paul all together have 2n + 36 silver dollars, Jerry has 6n plus 12 silver dollars more than and Paul. How many silver dollars does Jerry have? B) Jerry and Paul all together have 6n + 2n silver dollars, Jerry has 12 silver dollars and Paul has 36 silver dollars. How many silver dollars does Jerry have? C) Jerry and Paul all together have 12 + 36 silver dollars, Jerry has 6n silver dollars and Paul has 2n silver dollars. How many silver dollars does Jerry have? Eliminate D) Jerry and Paul all together have 2n + 36 silver dollars, Jerry has 6n silver dollars and Paul has 12 silver dollars. How many silver dollars does Jerry have?
General
5 months ago
The local high school hosted a hockey tournament. Tickets were sold before the tournament and at the door. When reviewing the ticket sales, the director of the tournament realized that there were 80 more tickets purchased before the tournament than at the door. A total of 820 tickets were sold. Which statements about ticket sales are true? Check all that apply.
General
5 months ago
Which of the following correctly describes confidence level? A confidence level is the probability that a simple event will occur. A confidence level is a value that is added and subtracted from a given value to give an interval where something will likely happen. A confidence level is the probability that something will fall within a confidence interval. A confidence level is the probability that something will fall outside of a confidence interval.
General
5 months ago
PLZ HELP ME ASAP The box plot shows the typing speed (in words per minute without errors) of the contestants in a typing contest.The interquartile range of team A isA.3B.4C.8D.9 And the interquartile range of team B is A.4B.5C.8D.9The difference of the medians of team A and team B isA.4B.7C.8D.9This value is equal to about A.halfB.1 timesC.2 timesthe interquartile range of either data set.
General
5 months ago
three students can wash a car in 16 minutes. If the time varies inversely with the number of students washing the car, how many minutes will it take two students to complete the job?a. 20b22c.24d. 32/3
General
5 months ago
Determine the unknown measures of the triangle shown. Round to the nearest tenth, if necessary
General
5 months ago
PLEASE ANSWER ASAP FASTLatisha drove around town running errands all afternoon. The path she took is shown on the map below.To the nearest mile, what is the total distance that she traveled?A) 11 milesB) 17 milesC) 26 milesD) 51 miles
General
5 months ago
75 points All freshmen, sophomores, juniors, and seniors attended a high school assembly. The total student attendance is shown in the table. Twice during the assembly, a student is chosen at random to assist with the presentation. After the first student has finished assisting, the student returns to the group and can be chosen a second time. What is the probability that the first student chosen is a senior and the second student chosen is a sophomore? a. 11/320b. 3/80c. 11/40d. 2/5
General
5 months ago
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