It's 45 because they are congruent. If the vertex is in the center of a circle then the angle and the arc are congruent
Find the value of x. Bring x by itself.
-2x = -6
x = 3
Answer:
constant of variation: -6/4 = -3/2
Step-by-step explanation:
Answer:
k = 7
Step-by-step explanation:
given y varies jointly with x and w then the equation relating them is
y = kxw ← k is the constant of variation
to find k use the condition when y = - 42, x = 2 and w = - 3 , then
- 42 = k × 2 × - 3
- 42 = - 6k ( divide both sides by - 6 )
7 = k
constant of variation is k = 7
Answer:
a)
b)
Step-by-step explanation:
We are given the following information in the question:
Volume of sphere =
a) We have to find the rate at which the volume change with respect to the radius when r = 2 ft.
Differentiating, we get,
Putting r = 2
b) Approximate change in volume when radius changes from 2 to 2.2 feet
Putting the values, we get: