Which of the following represents the zeros of f(x) = 3x^3 − 10x^2 − 81x + 28?A) 7, -4, 1/3
B) 7, -4, -1/3
C) 7, 4, 1/3
D) 7, 4, -1/3

Answers

Answer 1
Answer: Option A). 7, -4 and 1/3

To find the zeros you can factor the polynolial into (3x-1)((x+4)(x-7)

Then:
3x -1 =0 => x = 1/3
x+4=0 => x = -4
x-7 =0 => x =7

Those are the three zeros.


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Answers

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12.264 rounded to the nearest hundredth is 12.26

If the volume for 3-D polyhedra A is 300 cm3 and the volume for 3-D polyhedral B is 900 cm3. How many times bigger is the volume of pyramid B than pyramid A? Select one:
a. 3%
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Answers

Answer:

c. 300%

Step-by-step explanation:

In order to solve this problem you just have to divide the bigger polyhedral by the smaller polyhedral:

(900 cm^(3) )/(300cm^(3))

As this is equal to 3, you know that the bigger polyhedral is 3 times bigger than the smaller polyhedral so now you just make a rule of three, if an object that is 100% bigger than other is 1 time bigger, what would be the percentage of an object that is 3 times bigger?

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x=(3*100)/(1)

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Hello Marie,

V(B)/V(A)=900/300=3=300/100=300%

Find f(-7) if f(x) = 2x + 8. -6 2 3 22

Answers

Just subst. -7 for x in f(x) = 2x + 8.  We get 2(-7) + 8, or -6.

All you're gonna do is plug in -7 everywhere where x is

Algebra The length of the base of an isosceles triangle is x. The length of a leg is 2x  5. The perimeter of the triangle is 20. Find x.Know
1. What is the perimeter of a triangle?
2. What is an isosceles triangle?
Need
3. What are the sides of an isosceles triangle called?
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Answers

is there anything else you can tell me 

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Answers

Hello,

S-πr²=πl

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Step-by-step explanation:

-4x <8 solve the inequality

Answers

Answer:

x>−2

Step-by-step explanation:

−4x<8

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−4x

−4

<

8

−4

x>−2