Answer:
D
Step-by-step explanation:
y = -x^2 + x - 1
y = -x -1
-x-1 = -x^2 + x -1
x^2 -2x = 0
x( x-2) = 0
x1= 0 , x2 = 2
y(0) = 0-1 = -1
y(2) = -2-1 = -3
(0, -1) & (2, -3)
Check the picture below.
so let's notice, the base is a 6x6 square, and triangular faces have a base of 6 and an altitude/height of 5. So we can just get the area of the square and the triangles and sum them up and that's the area of the pyramid.
![\bf \stackrel{\textit{triangles' area}}{4\left[ \cfrac{1}{2}(6)(5) \right]}+\stackrel{\textit{square's area}}{(6\cdot 6)}\implies 60+36\implies 96](https://tex.z-dn.net/?f=%5Cbf%20%5Cstackrel%7B%5Ctextit%7Btriangles%27%20area%7D%7D%7B4%5Cleft%5B%20%5Ccfrac%7B1%7D%7B2%7D%286%29%285%29%20%5Cright%5D%7D%2B%5Cstackrel%7B%5Ctextit%7Bsquare%27s%20area%7D%7D%7B%286%5Ccdot%206%29%7D%5Cimplies%2060%2B36%5Cimplies%2096)
Answer:
9
Step-by-step explanation:
Using the rule of radicals
×
⇔ 
Simplify the radicals

= 
=
× 
= 2

= 
=
× 
= 3
Then
3
+ 
= 3(2
) + 3
= 6
+ 3
= 9
Answer:
The answer is 2 quarts!(:
Step-by-step explanation:
Answer:
d
Step-by-step explanation: