square root it and divide by pi. square root of 529 is 23. then divided by pi (3.14) is 7.32.
What is the value of the following expression? -9/4➕-8/5-2 1/2
1 answer:
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square root it and divide by pi. square root of 529 is 23. then divided by pi (3.14) is 7.32.
Answer:
x ∈ [-2, 7]
Step-by-step explanation:
The given equation ...
x^2 -5x -4 ≤ 10
can be rewritten as ...
x^2 -5x -14 ≤ 0
and factored as ...
(x +2)(x -7) ≤ 0
Clearly, the "or equal to" condition will be met when x=-2 and x=7. For values of x between these numbers, one factor is negative and the other is positive. Hence the product will be negative. So, numbers in that interval are the solution set.
x ∈ [-2, 7]
