F(x)=-x2+5n
g(x)=-2n+15
A(x)=|g(x)-f(x)|=|x2-7n+15|
x2-7n+15>0 for every x (1)
A(x)=x2-7n+15
(1):
x2-7n+15=(x-3.5)^2-12.25+15=(x-3.5)^2+2.75 > 0
because for every x: (x-3.5)^2>=0
answer: A(x)=x2-7n+15
Answer:
No, the answer is not reasonable. It should be about 1 foot
Step-by-step explanation:
we know that
The correct dimensions are
Gina had two pieces of ribbon. One was 5/8 foot long and the other was 1/4 foot long
so
Sum the length of both pieces


therefore
No, the answer is not reasonable. It should be about 1 foot
6 granite, 3 marble, 14 sandstone, 1 slate
ratio of sandstone to marble
how many sandstone does she have .....14
how many marble does she have......3
so the ratio would be : 14/3 or 14:3, or 14 to 3
Well, we know that the first one is correct because those are the only two shapes up there. The second one is correct because a*b*c is equal to the rectangular prism, while 1/2(a*b*[d-c]) is equal to the triangular one.
Keeping in mind that 1/2*d = c, the third one is also correct because when you simplify the equation, you get



This is equal to the volume because the overall height is 2, but since it's a triangular prism, we take away one half. Because it's all multiplication, we can actually arrange all the values. But the point is that the third one is right, too, leaving the last one to be wrong.
So the last one has to be the answer. Whew!