3 years ago

Which of the following is equivalent to the expression to: 9x + 6?

Mathematics

2 answers:

Drupady [299]3 years ago

8 0

C because 3 times 3n is 9n and 3 times 2 is 6 so it’s 9n+6 but in this case 9x+6(same thing)

maw [93]3 years ago

4 0

Answer:

C. $3(3n + 2)$

Step-by-step explanation:

A. $3(3n - 2)\\9n -6$

B. $3(3n) +2n\\9n + 2n\\11n$

C. $3(3n + 2)\\9n + 6$

D. $3(3n + 2n)\\9n +6n\\15n$

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3 years ago

In triangle ABC, the size of angle B is 4 times the size of angle A, and the size of angle C is 6°

amid [387]

Answer:

<A = 18.6 Degree

<B =74.4 Degree

<C = 87 Degree

Step-by-step explanation:

Sum of all the angles of triangle is 180

as given ,

<A = ?

<B = 4<A

<C = 5 <A - 6

As per rule ,

<A + <B +<C = 180

<A + 4 <A + 5<A - 6 = 180

10 <A - 6 = 180

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PROOF

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180 = 180

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