How do u simplify this expression |-7|

F x + y is rational, must x and y each be rational? A) Yes; because the sum of rationals is rational. B) No; because the sum of irrationals is always irrational. C) No; because x and y could be additive inverses of each other.

The following are the temperatures in °C for the first 10 days in January: 1.6, - 9.2, - 6.4, 6, - 3.9, 8, 5.8,1.5,-3.6,-9.4 Calculate the range.

What is a number that when you multiply it by 7 and add 25 to the product, you get 46? answer?

51,988 rounded to the nearest ten thousand

What is the value of the discriminant? 2K2 = 10k - 2

The volume of this cylinder is 6,430.72 cubic centimeters, the height is 8 cubic centimeters. What is the radius? Use ≈ 3.14 and round your answer to the nearest hundredth.

A meteorologist predicts a 20% chance of rainfall today. Which statement describes the likeihood of rainfall today?

Are a rational expression and its simplified forms equivalent? Provide mathematical examples to support your opinions.

Select all the correct answers. Aisle 2 of a furniture store stocks 4-legged chairs, 4-legged tables, and 3-legged stools. If there are t tables, c chairs, and s stools, which expressions show the total number of furniture legs in aisle 2?

Assume a round of golf requires four hours of leisure time, and attending a concert requires two hours. If the price of a round of golf is $40 and the price of a concert is $80, ceteris paribus, Joe will play