Question

Math Help please!

Answer 1

1. 3x8 – 7x8 (1 point)
–4x16
–21x8
–4x8
10x8
2. 6y5 – 9y5 (1 point)
–3y10
15y5
–54y5
–3y5
Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms.

3. 2 – 11x2 – 8x + 6x2 (1 point)
–5x2 – 8x + 2; quadratic trinomial
–5x2 – 8x; quadratic binomial
–6x2 – 8x – 2; cubic polynomial
6x2 – 8x + 2; cubic trinomial
4. A biologist studied the populations of white-sided jackrabbits and black-tailed jackrabbits over a 5-year period. The biologist modeled the populations, in thousands, with the following polynomials where x is time, in years.

White-sided jackrabbits: 5.5x2 – 9.2x + 6.9
Black-tailed jackrabbits: 5.5x2 + 9.9x + 1.3

What polynomial models the total number of white-sided and black-tailed jackrabbits?

(1 point)
11x2 + 0.7x + 8.2
11x2 – 0.7x + 8.2
11x2 – 0.7x – 8.2
–11x2 + 0.7x – 8.2
5. A family is having a pool built in their backyard. If their yard is rectangular and measures 7x by 6x and the pool is circular with a radius of 2x how much of the yard will be left over after the pool is built? (1 point)
38x2
42x2 – 4x2
42x2 – 2x2
38x2
6. A sports team is building a new stadium on a rectangular lot of land. If the lot measures 6x by 10x and the sports field will be 1x by 4x, how much of the lot will be left over to build bleachers on? (1 point)
56x2
64x2
30x2
60x2
Simplify the product using the distributive property.

7. (5h – 3)(3h + 7) (1 point)
15h2 – 44h + 21
15h2 – 26h – 21
15h2 + 44h + 21
15h2 + 26h – 21

Answer 2

did you ever get the answers for this tesr?