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3 years ago

9(2a+2) equivalent expression

1 answer:

3 0

Multiply 9 by 2a and 2, and you get 18a + 18. Another equivalent expression would be 18(a+1), which you can get by factoring the above answer.

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lesya692 [45]

Answer:

There are 112 days in 16 weeks

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3 years ago

zloy xaker [14]

Answer: Alberto run 27 meters.

Time taken By Alberto=3 seconds

Step-by-step explanation:

Let d be the distance Alberto ran to catch Omar.

Then, distance ran by Omar=x-6

Also, $\text{Time}=\frac{\text{Distance}}{\text{Speed}}$

Since, both started running at the same time.

Time taken By Alberto= $\frac{x}{9}$

Time taken By Omar= $\frac{x-6}{7}$

Now, at the point they meet time taken by both is equal.

$\frac{x}{9}=\frac{x-6}{7}\\\Rightarrow\ 7x=9(x-6)\\\Rightarrow7x=9x-54\\\Rightarrow9x-7x=54\\\Rightarrow\ 2x=54\\\Rightarrow\ x=27$

Hence, Alberto run 27 meters.

Time taken By Alberto= $\frac{27}{9}$ =3 seconds

6 0

3 years ago

Strike441 [17]

Its depens on whether or not you have

8 0

3 years ago

givi [52]

$\bf \cfrac{d}{dx}[tan^{-1}(x^2)]\implies \stackrel{\textit{chain rule}}{\cfrac{1}{1+(x^2)^2}\cdot 2x}\implies \cfrac{2x}{1+x^4}$

6 0

3 years ago

Mandarinka [93]

Answer:

(3(6)-1)/(2(6)+1)

Step-by-step explanation:

See attached image.

5 0

2 years ago