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noname [10]
3 years ago
7

Which expression is equivalent to 7a-8-12a+4

Mathematics
2 answers:
Kryger [21]3 years ago
7 0

Answer:

-5a - 4 is the expression equivalent

wolverine [178]3 years ago
5 0

Answer:

Step-by-step explanation:

-5-4

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Find the value of 83 - [59 - (22 - 18)]
Kipish [7]
Use order of operations (PEMDAS) 
<span>83-<span>(<span>59-<span>(<span>22-18</span>)</span></span>)
</span></span><span><span>83-<span>(<span>59-4</span>)
</span></span></span><span><span>83-55=</span></span>28

Final answer: 28 
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What is the best approximation of the length of segment QR?
Anuta_ua [19.1K]

we are given

S=80

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we can use tangent formula

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4 years ago
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weeeeeb [17]
Number b is ans correct
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3 years ago
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Help me mathematics​
Ede4ka [16]

Answer:AB=15 ,angle A=53.1°,angle B=36.9°

Step-by-step explanation:

AB=√(12^2+9^2)

AB=√(12x12+9x9)

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AB=√(225)

AB=15

TanA=12/9

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angle B=180-(90+53.1)

angle B=180-143.1

angle B=36.9°

8 0
4 years ago
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