Cumulative Exam — Cumulative exam Answers

Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x – 40? Determine the solution set algebraically.

Mei and Anju are sitting next to each other on different horses on a carousel. Mei’s horse is 3 meters from the center of the carousel. Anju’s horse is 2 meters from the center. After one rotation of the carousel, how many more meters has Mei traveled than Anju?

Which represents the polynomial written in standard form?4m – 2m4 – 6m2 + 9

Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches.

Maria gathered the data in the table. She finds the line of best fit to be y = 2.78x – 4.4.

Mr. Walker is looking at the fundraiser totals for the last five years.

What does a residual value of 1.3 mean when referring to the line of best fit of a data set?

The relative frequency table shows the results of a survey in which parents were asked how much time their children spend playing outside and how much time they spend using electronics.Given that a child spends at least 1 hour per day outside, what is the probability, rounded to the nearest hundredth if necessary, that the child spends less than 1 hour per day on electronics?

The two-way table represents data from a survey asking teachers whether they teach English, math, or both. Which is the joint relative frequency for teachers who teach math and not English? Round the answer to the nearest percent.

The frequency table represents the results of a survey comparing the average age of household members to the way that they watch non-network television.Madigan converts the frequency table to a conditional relative frequency table by row.Television Viewing MethodWhich value should she use for X? Round to the nearest hundredth.

The two-way table represents data from a survey asking students whether they plan to attend college, travel, or both after high school. Which is the marginal relative frequency for students who plan to attend college? Round the answer to the nearest percent.

What is true about △ABC? Select three options

Which survey is most likely affected by bias?

What is the solution to the equation ?

The box plot compares Marta’s and Ani’s diving scores in the first several meets of the season.Based on the data in the box plots, what is the best evidence to show which diver had greater overall success during the meets so far this season?

A prism has 2 congruent hexagonal bases like the one shown. Each hexagon is made from 2 congruent isosceles trapezoids.

The base of a solid right pyramid is a square with an edge length of n units. The height of the pyramid is n − 1 units.

Solve x2 + 10x = 24 by completing the square. Which is the solution set of the equation?

The histogram below shows the number of properties in a town that sold within certain time periods. Why might the graph be considered misleading?

Priya is playing a game where she earns online badges for scoring higher than the mean score on a level. After the tenth level, she scores 3,540 points, which is 2 standard deviations above the mean score of 3,110 points.