Answer:
<u>The correct answer is C. 9 -√ 105/ 2, 9 + √ 105/ 2</u>
Step-by-step explanation:
Let's find the solutions for the quadratic equation:
x² = 9x + 6
x² - 9x -6 = 0
Using the quadratic formula, we have:
x = [- (-9) +/- √ (-9)² - 4 * 1 * -6]/2 * 1
x = [ 9 +/- √ (81 + 24]/2
x = [ 9 +/- √ (105]/2
x₁ = [ 9 + √ (105]/2
x₂ = [ 9 - √ (105]/2
<u>The correct answer is C. 9 -√ 105/ 2, 9 + √ 105/ 2</u>
Note: Same answer than question 14133688, answered by me today.
Answer:
D
Step-by-step explanation:
Just did it
1. Add 4 to both sides of the equation.
2. Multiply 6/5.
x=
Answer: b) 68%
Step-by-step explanation:
Gross margin is used to calculate the amount left of revenue after the costs of goods sold is accounted for.
The formula is:
= (Revenue - Cost) / Revenue
= (28,675 - 9,274) / 28,675
= 0.67658
= 68%