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2 years ago

Wayne and Mack have

Mathematics

2 answers:

Murljashka [212]2 years ago

8 0

Answer:

Step-by-step explanation:

$\sf Twice = *2\\9 * 2 = 18$

Darya [45]2 years ago

6 0

Answer:

Step-by-step explanation:

mack has 18cats because she has 2×9 cats as Wayne 2×9 is 18

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3 years ago

Read 2 more answers

Factor completely 4u^2-28u+49

aleksandrvk [35]

Assignment: $\bold{Factor \ 4u^2-28u+49}$

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Answer: $\boxed{\bold{\left(2u-7\right)^2}}$

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Rewrite $\bold{4u^2-28u+49}$

$\bold{\left(2u\right)^2-2\cdot \:2u\cdot \:7+7^2}$

[ Step Two ] Apply perfect square formula

Note: Perfect Square Formula: $\bold{\left(a-b\right)^2=a^2-2ab+b^2}$

$\bold{a=2u,\:b=7}$

$\bold{\left(2u-7\right)^2}$

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4 years ago

Write the point-slope form of the equation of the line that passes through the point (-1,5) and has a slope of -1. Include

Masja [62]

Answer:

y= - x + 4

Step-by-step explanation:

The point-slope form of the equation of a line is:

y= m ( x - h )+ k

Where m is the slope and (h,k) is a point through which the line passes.

The slope of the line is m=-1 and it passes through (-1,5), thus the equation of the line is:

y=(-1) ( x - (-1) ) + 5

Operating:

y= - ( x + 1 ) + 5

y= - x - 1 + 5

Simplifying:

y= - x + 4

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3 years ago