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Stella [2.4K]
3 years ago
13

What is the length of AC¯?

Mathematics
2 answers:
xeze [42]3 years ago
7 0

x+4 = 3x-8

x+12 = 3x

12 = 2x

x = 6

AC = x = 6

liberstina [14]3 years ago
4 0
X+4=-4
3x-8=-8

Hope it helps.
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Hello,

The correct answer is 18.
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Answer:

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Step-by-step explanation:

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Then we are to find the diameter of the second semi-circle. Given the entire length to be 30 feet, 30-22 leaves us with 8 feet as its diameter thus r=4.

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8 0
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I need help with #18,20,22 and 24. Please show your work and I'm really thankful for your help as soon as possible!
Artist 52 [7]
I'll start 18 and 22 for you, and you should then be able to do the rest on your own!

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For 22, since the area of a rectangle is length*width (we know given the right angles and that the opposite sides are equal in how long they are), we can multiply 2 perpendicular lines, for example, BC and CE to get sqrt(32)*sqrt(8)=16 as the area
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