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1 year ago

I need help please please

Mathematics

1 answer:

algol [13]1 year ago

4 0

Answer:

Step-by-step explanation:

Rotates and then translates 7 to the left.

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3x^3-5x+x^7+9+4x^11 polynomial

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3 years ago

How do simplify 4(x-3)+5(x-3)

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9x-27

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4(x-3)+5(x-3)=4x-12+5x-15=4x+5x-12-15=9x-27

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3 years ago

At a rate of 4 gallons per minute how long will it take to fill a 300 gallon swimming pool

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3 years ago

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Write a linear equation that contains the ordered pair shown in the table below:

Amiraneli [1.4K]

Answer:

$y=2x-4$

Step-by-step explanation:

Let the equation of line is $y=mx+b$ , where $m$ is the slope of the line.

It passes through $(-5,-14),(-2,-8)\ and\ (1,-2)$ .

(<em>Slope of the line</em> joining $(x_1,y_1)\ and\ (x_2,y_2)=\frac{y_2-y_1}{x_2-x_1}$ )

Hence slope of the given line

$m=\frac{-8(-14)}{-2-(-5)}=\frac{-8+14}{-2+5}=\frac{6}{3}=2$

Equation of line is: $y=2x+b$

The line passes through $(1,-2)$

$-2=2\times 1+b\\b=-2-2\\b=-4$

Check if $(-5,-14)$ is on the line $y=2x-4$

$L.H.S.=-14\\R.H.S.=2\times (-5)-4=-10-4=-14\\L.H.S.=R.H.S.$

Hence line passes through $(5,-14)$ .

Check if $(-2,-8)$ is on the line $y=2x-4$

$L.H.S.=-8\\R.H.S.=2\times (-2)-4=-4-4=-8\\L.H.S.=R.H.S.$

Hence line passes through $(-2,-8)$ .

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2 years ago