Answer:
In the first one answer is r²
In second one answer is 3
Step-by-step explanation:
Yes it is Algebra with different powers
In first one (6r4+4r) +(__- 2r4 + 3r) = 4r4 + r2 + 7r
Like terms are added:
6r^4- 2r^4 + 4r + 3r +____ = 4r^4 + r2+ 7r
4r^4+7r +___ = 4r^4 + r^2 + 7r
Therefore ___ = r^2
In second one:
(__ -8x - x^2)-(4x^2 -7 +6x) = -5x^2 +14x +10
Open the brackets
__ -8x - x^2-4x^2 +7 -6x = -5x^2 +14x +10
Add like terms
__ -14x -5x^2 + 7= -5x^2 +14x +10
Therefore
___ + 7 = 10
___ = 10 -7 = 3
Answer:
1:4
Step-by-step explanation:
UvU hope this helps
Answer:jjjexhnjkhjjn 677
Step-by-step explanation:
Answer:
The cone's height is 9
Step-by-step explanation:
Recall that the volume of a cone is: , where 'h' is the cone's height, and "r" the radius of its base.
In our case, we know that the volume of the cone equals; .
We also know the diameter of the base (12), so the radius of the base must be half of this: 6
Now we replace all known values in the formula for the volume, and solve for the unknown "h':
A tangent line is located outside the circle so the answer would be AB