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Luba_88 [7]
3 years ago
8

5{-3.4k-7} + {3k+21}

Mathematics
1 answer:
lina2011 [118]3 years ago
8 0
The answer is −14k−14. Hope this helps.
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If $5700 is invested in a savings account for which interest is compounded quarterly, and if the $5700 turns into $6600 in 4 yea
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The interest rate is 3.68%, can I get brainliest answer? Thanks :)
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3 years ago
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*LAST QUESTION, HURRY AND PLEASE ANSWER, WILL CHOOSE BRAINLIEST FOR DETAILS AND ANSWER* How many times larger is the rectangular
anyanavicka [17]

Answer:

The rectangular prism is 30 times larger than the cube.

Step-by-step explanation:

The Cube has a length of 2, a width of 2, and a height of 2.

Volume = length times width times height     or V=lwh

2 x 2 x 2= 8

The Rectangular prism has a length of 10, a width of 6, and a height of 4.

10 x 6 x 4= 240

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6 0
4 years ago
LOTS OF POINTS <br> Simplify the expression by factoring, showing the steps in your work
julia-pushkina [17]

Answer:

\frac{3x+7}{4x+1}

Step-by-step explanation:

\frac{12x^2+31x+7}{16x^2+8x+1}

First you factor 12x^2+31x+7:

=\left(12x^2+3x\right)+\left(28x+7\right)

Then you factor out 3x from 12x^2+3x:

12x^2+3x

=12xx+3x

=3\cdot \:4xx+3x

=3x\left(4x+1\right)

Then you factor out 7 from 28x+7:

28x+7

=7\cdot \:4x+7

=7\left(4x+1\right)

=3x\left(4x+1\right)+7\left(4x+1\right)

Factor out common term 4x+1:

=\left(4x+1\right)\left(3x+7\right)

\frac{\left(4x+1\right)\left(3x+7\right)}{16x^2+8x+1}

Factor 16x^2+8x+1:

=4^2x^2+8x+1

=4^2x^2+8x+1^2

=\left(4x\right)^2+8x+1^2

=\left(4x\right)^2+2\cdot \:4x\cdot \:1+1^2

Use the perfect square formula:

=\left(4x+1\right)^2

\frac{\left(4x+1\right)\left(3x+7\right)}{\left(4x+1\right)^2}

Cancel out common factor 4x+1:

=\frac{3x+7}{4x+1}

8 0
3 years ago
Mr. Marquis had a metal pipe that was 1,000 cm in length. He cut the pipe into 16 shorter pieces of equal length. How long was e
Ivenika [448]
This would mean 1000cm of pipe is distributed across 16 cuts, or 1000/16. This equals 62.5, or that each piece would be 62.5 centimeters long.
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viva [34]

Answer:

\large \boxed{\mathrm{seven }}

Step-by-step explanation:

7^2

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