Answer:
Step-by-step explanation:
7x + 2x =90 (being perpendicular)
9x =90
x =90/9
x =10
substiute the value of x
7x
=7*10
=70
2x
=2*10
=20
The initial value is where the line intersects the y-axis. So, this does it at y = 2. The graph has a slope (rate of change) of 1, because for every x-value, the y-value goes up by exactly 1. So, the answer is C.
Answer:
A. 31.4 feet
Step-by-step explanation:
The formula for circumference is given by
C = pi d
Since we know the diameter is 10 ft
C = pi * 10
pi is approximately 3.14
C = 3.14* 10
C = 31.4 ft
Answer:
120
Step-by-step explanation:
Y=-2x^2-3x+4
dy/dx=-4x-3, d2y/dx2=-4
When the velocity, dy/dx=0, then y(x) is at an absolute maximum because the acceleration is a constant negative, -4.
dy/dx=0 only when -4x-3=0, -4x=3, x=-3/4
y(-3/4)=5.125
So the maximum value of y is 5 1/8
