Why is the opposite of a negative number a positive number?

How do i find the Pythagorean triple with three numbers example:2.1,2.8,3.5

Suppose your friend multiplied 1.2 and 2.6 and got 31.2 as the product. Is your friend's answer reasonable? Justify your response.

A vehicle is traveling at a rate of 65 miles per hour. how many feet per hour is this

Priya asked each of five friends to attempt to throw a ball in a trash can until they succeeded. She recorded the number of unsuccessful attempts made by each friend as: 1, 8, 6, 2, 4. Priya made a mistake: The 8 in the data set should have been 18.

Which survey question will produce discrete data? Select all that apply. What is your gender? What is your height? Are you married? How many people live in your household? What is the area of a circle you drew?

What is 3.75 rounded to

A child takes a nap averaging three hours and gets an average of 12 hours of sleep at night. Nap time and night time sleep can each vary by 30 mins. What are the possible time lengths for the child's nap and night time sleep? ... ?

4x - 10 ≥ 22 or x - 5 < - 6

What does control for eximerment mean .

A scientist estimated that a mixture would need 5 millimeters of a chemical to balance. The actual amount d was 7 millimeters. What was the percent error of the scientists estimation?