Answer:
Step-by-step explanation:
12.
the formula for the volume of a cone is V=1/3hπr²
549.5 = 1/3(21)(3.14)(x)^2
549.5 = 7(3.14)(x)^2
549.5 = 21.98(x)^2
549.5 = 21.98(x)^2
divide by 21.98 on both sides
25 = (x)^2
sqrt 25 = sqrt x^2
5 = x
13.
the formula for the volume of a sphere is V=4/3πr^3
v=4/3(3.14)9^3
v=4/3(3.14)729
v=(4.186)729
v=3052.08
14.
the formula for the volume of a sphere is V=4/3πr^3
523=4/3(3.14)r^3
523=4/3(3.14)r^3
523=(4.186)r^3
divide by 4.186 on both sides
124.92=r^3
cube root on both sides
4.998=r
round
5=r
<em><u>Please mark brainliest this took me a while</u></em>
Answer:
F to B Your welcome :)
Step-by-step explanation:
The first option and the third option are correct.
(Although, it's probably way too late now...)
Simple...
you have: For every 14 seeds that Okra seeds Dana planted 9 of them grew; if he planted 182 seeds..how many grew?
Set up an equation...
Cross multiply....
14*x=14x
9*182=1638
14x=1638
x=117
This means that, for 182 seeds planted, 117 of them grew to be plants.
Thus, your answer.
Answer:
Given the value of pi (π) = 3.14
Given the speed of Radius = 0.10 mph
Given the total area = 11000 square miles.
To find = the time.
Step-by-step explanation:
Since the oil spill in the ocean and spread in a circular pattern. So the total the spilled area = 11000 square miles.
The speed of the radius at which is increase = 0.10 mph
Given the value of pi (π) = 3.14
Now we have to find the total hours consumed to cover the area or the spilled over the area.
First, find the radius and this radius will be the distance. Then divide the distance with speed to find the time taken.
Area = 2 π r^2
11000 = 2 ×3.14 × r^2
r = 41.85 m
Now find the time.
Time taken to spill the oil = 41.85 / 0.10 = 418.52 hours
