A data set has a mean of 255 and a standard deviation of 12. All the data values are within two standard deviations of the mean. Which could be the maximum value of the data

True or false? If you took a true "if-then" statement and inserted a not each clause, the new would also be true

A car travels 100 miles in 4 hours. What is the average speed?

Hose 1 in June took 45 mins to fill a pool of height of 20 inches and length 110 inches. Hose 2 in July took 15 mins to fill the same pool. How long would it take to fill the same pool using both Hose 1 and 2 in August?

A, B, and C are polynomials, where: A = 3x - 4 B = x + 7 C = x2 + 2 What is A2 - (B + C) in simplest form? A. 8x2 - 25x + 7 B. 8x2 - 25x + 11 C. 10x2 - 25x + 7 D. 10x2 - 25x + 11

Simplify the expression 3x (4x^4 - 5x)

Ms. Jones's class has 26 students and they count by the same number. Each student says only one munber the last student to count says 1040 by what number are they counting

What is the reciprocal of - 3/8? A.-8/3 B.-4/2 C. 3/8 D. 8/3

Convert 80km to meters

1 A couple wants to have 2 children someday. Find the probability of having ezactiy one girl in any order.

536 cm greater than or less than 53.6 dm