Answer:
10.31
Step-by-step explanation:
15.41-4.79=10.31
6
5
÷4
Answer:
3/10
Step-by-step explanation:
x = –9
x = –3
x = 0
x = 6
By evaluating the quadraticexpression at each realnumber, we conclude that x = 0 is a solution (root) to (x - 3) · (x + 9) = -27. (Correct choice: C)
In this question we must find a solution for a polynomicexpression. There are several approaches to find them. Since we have a polynomicexpression as a product of binomials, we can determine the solution by evaluating at each choice:
x = 0
(0 - 3) · (0 + 9) = -27
(-3) · 9 = -27
-27 = -27
By evaluating the quadraticexpression at each realnumber, we conclude that x = 0 is a solution (root) to (x - 3) · (x + 9) = -27. (Correct choice: C)
To learn more on quadratic functions: brainly.com/question/5975436
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B. 28.5
C. 2.8
D. 12.7