If the volume of the cylinder is represented by 5x2 + 15x + 2 and the height is 5x, which expression represents the area of the
1 answer:
You might be interested in
Answer:
Explanation:
The equation is:
and
<u>1. Subsittute n = 6 into the equation:</u>
Now subsititute the known values:
You can solve for
<u />
<u>2. Substitute n = 5 into the equation:</u>
Substitute the known values and solve for
<u>3. Substitute n = 4 into the equation, subsitute the known values and solve for </u><u />
Answer:
31
Step-by-step explanation:
Given
x² + 5x - 3 = 0
with a = 1, b = 5, c= - 3 , then
sum of roots x₁ + x₂ = - = -
= - 5
product of roots = =
= - 3
Now
(x₁ + x₂)² = x₁² + 2x₁x₂ + x₂² , that is
(- 5)² = x₁² + 2(- 3) + x₂²
25 = x₁² - 6 + x₂² ( add 6 to both sides ), then
x₁² + x₂² = 31