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mafiozo [28]
3 years ago
15

Which is equivalent to 5(a + 6)? 1. a+30 2. 5a-30 3. 5a+6 4. 5a+30

Mathematics
1 answer:
Afina-wow [57]3 years ago
5 0

Answer:  the answer is number four.

Step-by-step explanation:

<h2>because when you take five multiply by A (5*a) you will get 5a and when you take five multiply by six (5*6) you will get 30 and there is positive sign so the plus (+) stays the same and your will be (5a+30) that is your answer. good luck.</h2>
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Answer:

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Step-by-step explanation:

Here, sides b=7 and c=3

Also, Angle B=60

Angle B is between side c and a

It can be solve by cosine rule and sin rule

sin rule says,

\frac{a}{sinA}  = \frac{b}{sinB}  = \frac{c}{sinC} \\  \frac{a}{sinA}  = \frac{7}{sin60}  = \frac{3}{sinC}  \\ \frac{7}{sin60}  = \frac{3}{sinC}  \\ sinC = \frac{3}{7} \: sin60 = 0.3711537445 \\  \\ C =  21.78

cosine rule says,

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7 0
3 years ago
5.8 times<br> 9.3 times<br> 7.5 times<br> 12.1 times
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4 years ago
Read 2 more answers
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