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3 years ago

Simplify the algebraic expression: 2(y + 5) + 3y - 4

Mathematics

2 answers:

vodomira [7]3 years ago

7 0

Answer: 5y + 6

Step-by-step explanation:

1. Distribute:

=2(y+5)+3y-4

=2y+10+3y-4

2. Subtract

=2y+10+3y-4

=2y+6+3y

3. Combine Like Terms

=2y+6+3y

=5y+6

love history [14]3 years ago

6 0

Answer:

2y +10 +3y-4

5y+6

Step-by-step explanation:

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3 years ago

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Whats the inverse of 17=1+9n

WINSTONCH [101]

Answer:

$\frac{9}{16}$

Step-by-step explanation:

$17 = 1 + 9n$

Subtract 1 from both sides

$17 - 1 = 1 - 1 + 9n$

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Divide through by 9

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The inverse of the answer is

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7 0

3 years ago

Solve

hammer [34]

$8 {x}^{2} + 5 = 35$
${8x}^{2} = 30$
${x}^{2} = 3 \frac{3}{4}$
$x = ( \sqrt{3.75} ) \: \: \: \: \: x = - ( \sqrt{3.75} )$
$x = 1.94 \: \: \: \: x = - 1.94$

5 0

3 years ago

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Help me and explain please!!!!

solmaris [256]

This has to do with ratios. If the current width is 8 inches and he wants to have it 35in, you must multiply the length by the same amount to keep it proportional.

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4 years ago

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What are the domain and range of this function y=(x+3)^2 -5

n200080 [17]

Answer: Choice A

Note: the range should be $[-5, \infty)$ . See explanation below.

===================================================

We can plug in any real number for x to get some output for y. The domain is the set of all real numbers in which we say $(-\infty, \infty)$ which is interval notation. It represents the interval from negative infinity to positive infinity.

The range is the set of possible outputs. The smallest output possible is y = -5 which occurs at the vertex (3,-5). We can get this y value or larger. So we can describe the range as the set of y values such that $y \ge -5$ and that translates to the interval notation $[-5, \infty)$ .

The square bracket says "include this endpoint" while the curved parenthesis says to exclude the endpoint. Your teacher mistakenly wrote $(-5, \infty)$ for choice A, when they should have written $[-5, \infty)$

I think either your teacher made a typo or somehow the formatting messed up. Either way, choice A is the closest to the answer.

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3 years ago

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