If B = y + 2 and C Y-7, find an expression that equals B + 2C in<br> standard form.

How to solve -2(1-7n)-5n=34

OLEGan [10]

-2(1-7n)-5n=34

Multiply the bracket by -2

(-2)(1)=-2

(-2)(-7n)=14n

-2+14n-5n=34

-2+9n=34

Move -2 to the other side. Sign changes from -2 to +2.

-2+2+9n=34+2

9n=34+2

9n=36

Divide by 9 for both sides

9n/9=36/9

n=4

Answer: n=4

6 0

2 years ago

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What is the area of the trapezoid?

DENIUS [597]

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Answer: 440 ft^2

Explanation:

I hope this helped!

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- Zack Slocum

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7 0

2 years ago

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White alphabet used to denote matrix and its element with example

Oksanka [162]

Answer:

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Step-by-step explanation:

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3 0

2 years ago

Let log_(b)A=3; log_(b)C=2; log_(b)D=5 what is the value of log_(b)((A^(5)C^(2))/(D^(6)))

Colt1911 [192]

Answer:

-11

Step-by-step explanation:

Given

$\log_bA=3\\ \\\log_bC=2\\ \\\log_bD=5$

Use properties:

$\log_b(A\cdot C)=\log_bA+\log_bC\\ \\\log_b\dfrac{A}{C}=\log_bA-\log_bC\\ \\\log_bA^k=k\log_bA$

Thus,

$\log_b\dfrac{A^5\cdot C^2}{D^6}\\ \\=\log_b(A^5\cdot C^2)-\log_bD^6\\ \\=\log_bA^5+\log_bC^2-\log_bD^6\\ \\=5\log_bA+2\log_bC-6\log_bD\\ \\=5\cdot 3+2\cdot 2-6\cdot 5\\ \\=15+4-30\\ \\=-11$

3 0

2 years ago

Find the decimal that is equivalent to <br> 1/15?

aleksley [76]

0.0667
Hope this helpsss

3 0

2 years ago

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If B = y + 2 and C Y-7, find an expression that equals B + 2C in standard form.