Answer:
A) 31.4
B)78.5
Step-by-step explanation:
A)2(pi)(r)
2*3.14*5=31.4
B)(pi)(r^2)
3.14*5^2=78.5
Answer:
The sweater costs 10 dollars.
Step-by-step explanation:
We can use proportion to solve this:

Answer:
12u-6
Step-by-step explanation:
Distributive Property
(2 − 4u)(–3)
-3*2 + -4u*-3
-6+12u
12u-6
Hope this helped!
If you’re trying to make an equation out of the given information then the correct answer would be: y=2.50x+500
Answer:
At the moment in question, we have a 5-12-13 right triangle.
x^2 + y^2 = 13^2
2x dx/dt + 2y dy/dt = 0
2(5)(2/3) + 2(12) dy/dt = 0
dy/dt = -5/18 ft/s
the area is 1/2 xy, so
da/dt = 1/2 y dx/dt + 1/2 x dy/dt
= (1/2)((12)(2/3) + (5)(-5/18))
= 119/36
Step-by-step explanation: