Answer:
y=3x+9
Step-by-step explanation:
this should be right sorry if not
The area of a circle:
A = πr²
dA/dr = 2πr
We are given dA/dt, using the chain rule
dr/dt = dA/dt x dr/dA
dr/dt = 1 x 1/2πr
When circumference = 2 cm:
2 = 2πr
r = 1/π; putting this value of r
dr/dt = 1/2π(1/π)
dr/dt = 1/2 cm/s
The radius is increasing at a rate of 1/2 cm/s.
Answer:
9.94 rounded up
Step-by-step explanation:
1 ft = 12 inches....so 49.68 ft = (49.68)(12) = 596.16 in
1 hr = 60 minutes
596.16/60 = 9.936 inches per minute
Tangent (32) = 3 feet / horiz dist
horiz dist = 3 feet / 0.62487
horiz dist =
<span>
<span>
<span>
4.8009986077
</span>
</span>
</span>
=
4.8 feet (rounded)
