T ✓ Х Find the sum of (x2 – 7x + 5) and (-3x2 - x + 10) [
1 answer:
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Answer:
<h2>a. It should look for 3 linear factors.</h2><h2>b. There are 3 dimensions.</h2><h2>c. x = 1.7</h2><h2>d. Maximum value is 12.597</h2>Step-by-step explanation:
a.
=
=
=
Hence the factorized form of the volume of the poly is
3 linear factors should needed to be look for.
b.
The 3 dimensions are (x + 4), x, (x + 3).
c.
Let, f(x) =
Now, =
Let =
and
=
=
The value will be maximum, if f1(x) = 0 and f2(x) < 0.
\\
\\
x = 1.69 ≅ 1.7 or x = -2.36 ≅ -2.4
Now f2(1.7) < 0.
At x = 1.7, the volume will be maximum.
d.
The maximum value is f(1.7) = 12.597(approximately)
Using tables we get that:
Answer: 0.9582.