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erastova [34]
3 years ago
14

Pls help me!!!!!!! will give brainliest to the first answer

Mathematics
2 answers:
Kisachek [45]3 years ago
4 0

Answer:

The answer is C

Step-by-step explanation:

mezya [45]3 years ago
4 0

Answer:

C. AB = 10.7

Step-by-step explanation:

Let's look through each option.

<u>Option A</u>

❌ AB = 2(AC)

It can't be that since AC isn't equivalent to BC. AC is 5.5 and CB is 5.2

<u>Option B</u>

❌ AB = 11

AB doesn't equal 11. AB equals to AB + AC.

If you put the numbers in, it gets to AB = 5.5 + 5.2.

If you add the numbers up, it would get to AB = 10.7. Since 10.7 is not 11, option B won't work.

<u>Option C</u>

Option C works as shown in Option B.

<u>Option D</u>

none of the above isn't true since option C works.

Hope this helped! If not, please let me know! <3

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\frac{a_{1} }{a_{2} }   =  \frac{b_{1} }{b_{2} }  = \frac{c_{1} }{c_{2} }

Hence

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cross-multiply

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open the bracket

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collect like term

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substitute a= 5b in equation (2)   and solve for b

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add 10 to both-side of the equation

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substitute b= 1 in equation (1)

a = 5b

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