Answer:
(X,Y)=(
,
)
Step-by-step explanation:
Step-by-step explanation:
f(x) = -7x² - x
g(x) = 9x² - 4x
(f - g)(x) = (-7x² - x) - (9x² - 4x)
(f - g)(x) = (-7x² - 9x²) + (-x + 4x)
(f - g)(x) = -16x² + 3x
(f - g)(1) = -16(1)² + 3(1)
(f - g)(1) = -16.1 + 3
(f - g)(1) = -16 + 3
(f - g)(1) = -13
Answer:
The lateral height of the square pyramid is 
Step-by-step explanation:
step 1
Find the surface area of the cube
The surface area of the cube is equal to

where
b is the length side of the cube
w have

substitute

step 2
Find the lateral height of the square pyramid
we know that
the surface area of the square pyramid is equal to

where
B is the area of the base
b is the base of the lateral triangle (base of the square)
h is the lateral height of the square pyramid

-----> is the same surface that the cube

substitute the values and solve for h



So what is your question here?
89 is the amount of points the team needs to score in the fifth game to average 70 points.
I hope this help