The inequality in the box has to be written as
x² + 2x - 80 ≤ - 65
<h3>How to solve the inequality</h3>
We have
(10 + x)1 * (16-2x) ≥ 130
Next we would have to open the bracket
160 + 16x - 20x - 2x² ≥ 130
Then we would have to arrange the equation
- 2x² - 4x + 160 ≥ 130
Divide the equation by two
- x² - 2x + 80 ≥ 65
This is arranged as
x² + 2x - 80 ≤ - 65
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Answer:
You can multiply the brackets to make sure you get 4x² + 4x + 1. Since the numbers in the brackets are the same, we can just use one of them and let it equal to 0. Then solve it. ∴ The answer is x = -1/2.
Step-by-step explanation:
4x2+4x+1=(2x+1)2 or (2x+1)(2x+1)
Answer:
225 x 0.15 = 33.75 profit
Step-by-step explanation:
15 + 7 + 9 + 7 + 4 + 4 + 3 + 3 = 52
Answer:
x=2
Step-by-step explanation:
The two non-included interior angles are congruent to the outside angle.
140-120=20
20/10=2
