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3 years ago

11+4 (x+7) 2nd power when x=2

2 answers:

monitta3 years ago

6 0

<span>11+4 (x+7)^2
Substitue 2 for x
</span><span>11+4 (2+7)^2
Multiply the numbers inside of the parenthesis by the exponent
11+4 (4+49)
Add 4 to 59
11+4 (54)
Add 4 to 11
15(54)
Multiply
Final Answer: 810</span>

Svetllana [295]3 years ago

5 0

First you follow PEMDAS, doing the parentheses first. Inside the parenthesis, there is 9. 9^2 is 81. Then you multiply 15 by 81, and you get 1215. Final answer 1215

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There are 6 minutes of commercials for every 24 minutes of television. How many minutes of commercials are there in 1 hour and 3

mafiozo [28]

Answer:

$16\ minutes$

Step-by-step explanation:

For every $24\ minutes$ of television time of commercials = $6\ minutes$

% of commercials $\=frac{6}{24}\times 100=25\%$

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3 years ago

Multiply using a special product formula (6x-8) (6x+8)

ANEK [815]

The correct answer is B.

6x*6x=36x

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Thus, our equation is 36x-64

Hope this helps!

4 0

3 years ago

Please help asap 25 pts

beks73 [17]

$y=ax^2+bx+c\\\\\text{Axis of symmetry:}\ x=\dfrac{-b}{2a}$

$\text{We have:}\\\\y=4x^2+16x-18\\\\a=4;\ b=16;\ c=-18\\\\x=\dfrac{-16}{2\cdot4}=\dfrac{-16}{8}=-2$

Answer: A.

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3 years ago