Add the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of x
Add: x 5.4x4 + 7x 3 + 8. 9x 3 + 7x2 - 10, and -2x 5 + 7x4 - 3x + 8

An angle that measures between 90 and 180° is called a(,

Question b of 10which of the following describe an angle with a vertex at a? check all that applyo a. labcов. савd dooo c_baco d. zacb

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g