3 years ago

What's the answer c2+8c+7

Mathematics

2 answers:

lara [203]3 years ago

6 0

Are you factoring or simplifying?

il63 [147K]3 years ago

5 0

You would factor it, so c^2 + 8c + 7 = (c+1)(c+7)

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You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. It bounces back up with every bounce,

Mariana [72]

Answer:

16.4 m to the nearest tenth.

Step-by-step explanation:

After the first bounce it rises to a height of 50*0.8 = 40 m.

After the next bounce it rises to 50*(0.8)^2 = 32 m

So after the 5th bounce it rises to 50(0.8)^5 = 16.4 m. (answer).

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3 years ago

Make x the subject of the formula a − bx = c

Eddi Din [679]

Answer:

x = c - a / -b

Step-by-step explanation:

a - bx = c

-a -a

-bx = c - a

divide -b

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2 years ago

Read 2 more answers

F(x)=2x+6 what is the value of f(7)

Deffense [45]

F(7)= (2x7) + 6
f(7)= 14+ 6
f(7)= 20
hope this helps x
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3 years ago

(24 oz is $3.49, 48 oz is $6.49) Figure out the unit rate for each jar of pasta sauce.

Svet_ta [14]

Answer:

Step-by-step explanation:

3.48/24= 14.54 cents/ oz

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2 years ago

Aaron wants to mulch his garden. His garden is x^2+18x+81 ft^2 One bag of mulch covers x^2-81 ft^2 . Divide the expressions and

blsea [12.9K]

Answer:

Step-by-step explanation:

Given

Garden: $x^2+18x+81$

One Bag: $x^2 - 81$

Requires

Determine the number of bags to cover the whole garden

This is calculated as thus;

$Bags = \frac{x^2+18x+81}{x^2 - 81}$

Expand the numerator

$Bags = \frac{x^2+9x+9x+81}{x^2 - 81}$

$Bags = \frac{x(x+9)+9(x+9)}{x^2 - 81}$

$Bags = \frac{(x+9)(x+9)}{x^2 - 81}$

Express 81 as 9²

$Bags = \frac{(x+9)(x+9)}{x^2 - 9\²}$

Evaluate as difference of two squares

$Bags = \frac{(x+9)(x+9)}{(x - 9)(x+9)}$

$Bags = \frac{(x+9)}{(x - 9)}$

Hence, the number of bags is $Bags = \frac{(x+9)}{(x - 9)}$

3 0

3 years ago