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3 years ago

What is the value of the expression [5 × (3 + 6)] – 8?

Mathematics

2 answers:

Ne4ueva [31]3 years ago

7 0

Answer:

Step-by-step explanation:

PEMDAS

Order of operations tell you to do what's in the parentheses first then multiply by 5 lastly, subtract 8

Sergeeva-Olga [200]3 years ago

5 0

The answer is 37. Hope this helps!

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Find the measure of each exterior angle of a regular polygon in which the sum of the measures of the interior angles is 2,520 de

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Answer:

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Step-by-step explanation:

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3 years ago

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SpyIntel [72]

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3 years ago

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Mamont248 [21]

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3 years ago

Which relationships have the same constant of proportionality between y and x as in the equation y=1/2x Choose 3 answers:

Andrew [12]

Answer:

A and B has the same constant of proportionality

Step-by-step explanation:

$y \propto x$

$y = kx ----1$

Where k is the constant of proportionality

We are supposed to find Which relationships have the same constant of proportionality between y and x as in the equation $y=\frac{1}{2}x$

On comparing with 1

$k = \frac{1}{2}$

A)6y = 3x

$y = \frac{3}{6}x\\y = \frac{1}{2}x$

So, this equation has the same constant of proportionality

B) $(x_1,y_1)=(2,1)\\(x_2,y_2)=(4,2)$

To find the equation :

Formula : $y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

So, $y - 1=\frac{2-1}{4-2}(x-2)\\y-1=\frac{1}{2}(x-2)\\y-1=\frac{1}{2}x-1\\y=\frac{1}{2}x$

So, this equation has the same constant of proportionality

$(x_1,y_1)=(1,2)\\(x_2,y_2)=(2,4)$

To find the equation :

Formula : $y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

So, $y - 2=\frac{4-2}{2-1}(x-1)\\y - 2=2(x-1)\\y - 2=2x-2\\y=2x$

So, this equation do not has the same constant of proportionality

$(x_1,y_1)=(2,1)\\(x_2,y_2)=(3,2.5)$

To find the equation :

Formula : $y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

So, $y - 1=\frac{2.5-1}{3-2}(x-2)$

$y-1=1.5(x-2)\\y-1=1.5x-3\\y=1.5x-2$

So, this equation do not has the same constant of proportionality

Hence A and B has the same constant of proportionality

3 0

4 years ago

Read 2 more answers

Can u pls help me or write it

skelet666 [1.2K]

Answer:

shauna is 65 inches and ryan is 75 inches

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers