Answer:
b
Step-by-step explanation:
b The sum of three and a number times negative five gives twenty-eight
Answer: - 235
<u>Step-by-step explanation:</u>
f(x) = -3x² + 13x + 3
f(-7) = -3(-7)² + 13(-7) + 3
= -3(49) - 91 + 3
= -147 - 88
= -235
The explicit formula of an arithmetic sequence:

We have:

Substitute:

Answer: an = 30n - 130
15 divided by 3 = 5 equal groups
Answer:
her equation should be a² + 3² = 4²
Step-by-step explanation:
a² + 3² = 4²
a² + 9 = 16
a² = 7
a = 
a ≈ 2.6 inches