1. The cube root of 384 can be rewritten as the cube root of (8*48). That can be simplified to 2 cube root of 48. That can be simplified down further to 2 cube root of (6*8), which is 2*2 cube root of 6, or 4 cube root of 6. So, the answer is C.
You do the same thing for each of the problems. If you actually want me to just give you the answers, they are:
1. C
2. D
3. D
If you need work, ask me in my inbox.
Answer:
The circumference of a circle with a diameter of 19 feet is 59.69
Step-by-step explanation:
Not really an explanation to this.
I hope I helped you, and a "Brainliest" is always appreciated! ☺
Answer:
The answer is b.
Step-by-step explanation:
<u>Part 1)</u> A 20° sector in a circle has an area of 21.5π yd².
What is the area of the circle?
we know that
the area of a circle represent a sector of
degrees
so by proportion
therefore
<u>the answer part 1) is</u>
The area of the circle is 
<u>Part 2)</u> What is the area of a sector with a central angle of 3π/5 radians and a diameter of 21.2 cm?
we know that
the area of the circle is equal to

where
r is the radius of the circle
in this problem we have

<u>Find the area of the circle</u>



<u>Find the area of the sector</u>
we know that the area of the circle represent a sector of
radians
by proportion
therefore
<u>the answer part 2) is</u>
the area of the sector is

1 yard = 3 feet.
100 yards x 3 = 300 feet.
300 feet x 3/4 = 225 feet.
The answer is 225 feet.