Add the two expressions. 8k + 4 and 3k + 8

Evaluate 3a + 5a2 when a = 2. Question 1 options: 26 44 484 106

3a2 + 16a + 5 a2 - 7a + 10

Prove the following trigonometric identity 2/square root of 3 cosx + sinx = sec (pi/6 - x)

Insert 2 sets of parentheses to make each sentence true: 2 x 14 - 9 - 17 - 14 = 7 A. (2 x 14) - 9 - (17 - 14) = 7 B. 2 x (14 - 9) + ( - 17 - 14) = 7 C. 2 x (14 - 9) - (17 - 14) = 7 D. (2 x 14) - (9 - 17) - 14 = 7

Which of these is most likely a learned skil? A. Able to remember everything B. Able to see perfectly C. Able to instantly identify a musical pitch D. Able to change a flat tire

What is the same as the difference between a number and itself

75% of the girls in miss Thomas class own a smartphone compared to. 62.5% of the boys. If there are 20 girls and 8 boys in miss Thompson class. How many students own a smart phone

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 30 meters cubed A sphere with height h and radius r. A cylinder with height h and radius r.

What polygons are represented in the tangrams?

What is 81.139 rounded to the nearest tenth