Answer:
(x +2)(x -4)(x -5)
Step-by-step explanation:
When you divide the cubic by (x +2), the factor that has -2 as a root, you get a quadratic with roots 4 and 5. Thus the factors are ...
(x +2)(x -4)(x -5)
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In the attachment, we have done the division using a graphing calculator. You can also do it by polynomial long division or by synthetic division. The resulting quadratic is ...
x^2 -9x +20 = (x -4)(x -5) . . . . . factor the quadratic
the opposite of -2 is positive 2
answer: 2
ANSWER(S):
15.51
EXPLANATION(S):
15.51 rounded to nearest tenth is 15
*more than one answer
Answer:
Hello! Your answer is D: 75.
Step-by-step explanation:
First we need to find the volume of pyramid A in order to solve this problem:
The formula for the pyramid is: V=
(B)(h)
Now we plug in the numbers:
V=(81)(4)
V=(324)
V=108in³
Now we divide pyramid B's volume by pyramid A's:
8,100/108 = 75
So the volume pyramid B is 75 times bigger than the volume of pyramid A!
Hope this helps!
Answer:
6 inches
Step-by-step explanation:
The volume of a triangular pyramid can be found using
v=1/3bh
where b is the area of the base, and h is the height
We know the volume is 12, so let's find the area of the base
The area of a triangle can be found using:
a=bh/2
We know the base is 4, and the the height is 3, so we can substitute them in
a=4*3/2
a=12/2
a=6
Now, we can solve for the height
v=1/3bh
Substitute 12 in for v, and 6 in for b
12=1/3(6h)
Multiply both sides by 3
3*12=1/3(6h)*3
36=6h
Divide both sides by 6
h=6
The height is 6 inches
