Answer:
9 cm
Step-by-step explanation:
Arc length = θ/360 × 2πr
A circle has an arc with a measure of 120 degrees and a lenght of 3π cm. What is the diameter of the circle
Hence,
3π = 120/360 × 2πr
Diameter = 2r
3π = 1/3 × 2πr
Cross Multiply
9π = 2πr
2r = 9π/π
Note that :
Diameter = 2r
Hence,
Diameter = 9 cm
<span>Answer:
Ratios compare quantities using division. This means that you can set up a ratio between two quantities as a division expression between those same two quantities.</span>
Well, you need to find it in y=mx+b format.
the point you have is (-2, 1)
Whoever travels at the faster rate will arrive first.
We need to find and compare two unit rates:
11 miles
------------ = 0.917 miles per minute
12 min
26 miles
--------------- = 1.083 miles per min
24 minutes
It's obvious that Marisol is driving faster. She will thus be first to arrive at the concert.