In the equation below, variables S, T, and U represent three matrices. Which property of matrix addition is illustrated below?

S + (T+U) = (S+T) + U

associative property

identity property

inverse property

commutative property

Subtract: (-12a^9-13u) - (-13a^9)

What is 829 rounded to the nearest ten

Tell how to multiply two fractions give an example

Heather is building a ladder for her treehouse. She will need 13 feet of lumber for each stilt and 2 feet of lumber for each rung on the ladder. How many feet of lumber does she need for a ladder with 2 stilts and 12 rungs? A.

Is √2between1.4 and 1.5

A sprinkler is designed to rotate 360∘ clockwise, and then 360∘ counterclockwise to water a circular region with a radius of 12 feet. the sprinkler is located in the middle of the circular region.

Find the area of a rectangular garden that has a width of 4x-6 and a length of 2x+4. A. 8x^2-24 B. 12x-4 C. 8x^2+4x-24 D. 8x-2

Which of the following expressions are equivalent to - (8/3) A 8/-3 B - 8/-3 C none of the above

Which function describes the arithmetic sequence shown? 1, 7, 13, 19, 25, 31, ...

5,300,000 divided by 10 to the 3 power