Which of the following situations involve opposite quantities combining to make 0?
A)
Stella has a new piggy bank. She adds 3 quarters
on Tuesday, and then adds another 3 quarters on
Thursday.
B)
Devon opens a new checking account with $30.
His first purchase, made with his new debit card,
totals $28.
C) Joe makes 1 1/2
liters of lemonade and drinks it
all during the afternoon.
D)
Brittany is writing a novel. She wrote 4 new
pages to finish Chapter 1. When she reviews
Chapter 1, she discards these 4 pages and an
additional 4 pages.

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i

The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u.s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.

Three consecutive even numbers have a sum between 84 and 96. a. write an inequality to find the three numbers. let n represent the smallest even number. b. solve the inequality. a. 84 ≤ n + (n + 2) + (n + 4) ≤ 96 b. 78 ≤ n ≤ 90 a. 84 < n + (n + 2) + (n + 4) < 96 b. 26 < n < 30 a. 84 < n + (n + 1) + (n + 2) < 96 b. 27 < n < 31 a. n + (n + 2) + (n + 4) < –84 or n + (n + 2) + (n + 4) > 96 b. n < –30 or n > 31