The diameter of the new rubber ball, to the nearest foot, must be D = 4.0 ft (in the case of the maximum cost).
<h3>
How to find the diameter of the ball?</h3>
Remember that for a sphere of diameter D, the surface area is:
A = 4*pi*(D/2)^2
In this case, the cost is $0.02 per square foot, and the company wants to expend (at maximum) $1 per ball, so first we need to solve:
$0.02*A = $1
A = $1/$0.02 = 50
So the surface of the ball must be 50 square feet.
Then we solve:
50ft^2 = 4*3.14*(D/2)^2
D = 2*√(50 ft^2/(4*3.14)) = 4.0 ft
If you want to learn more about spheres, you can read:
brainly.com/question/10171109
The time should be 8:19, when she wants to go back to school. Hope this helps :)
160 onces= 4,535.92 grams
Answer:
1523
Step-by-step explanation:
923 is 60.6% of the total number.
923 = 0.606 n
n ≈ 1523
Answer:
angle 3 = angle 7 = 79°
Step-by-step explanation:
angle 3 and 7 are corresponding angles and hence should be equal.
Hope it helps you. In case of doubt you can post in comment box. Please mark as the brainliest.
