3 years ago

Look at each expression below. Is it equivalent to 42x - 56y? Select Yes or No for a. 40(2x-16y)

Mathematics

1 answer:

MrRa [10]3 years ago

3 0

Answer:

A. no

Step-by-step explanation:

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There are about 320 million people living in the United States. Of these, how many would you predict wear corrective lenses

tiny-mole [99]

Answer:

240 million

Step-by-step explanation:

Google said that three out of four people wear corrective lenses which is also 75%. So whats 75% out of 320 million? Half of 320 million is 160 million. Half of 160 million is 80 million, 160 million plus 80 million is 240 million.

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Use the discriminant to determine the number and type of solutions the equation has.

lidiya [134]

Discriminant = square root (b^2 -4*a*c)
square root (64 -4*1*12) =
square root (16) =
4
Therefore it has 2 rational soltions

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If Amanda walks at an average speed of 2.72 miles per hour how long will it take her to walk 6.8 miles

defon

Two and a half hours

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bulgar [2K]

469.4/62=7.57

that is the answer

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Describe how to find the area of a circle that has only the circumference of the circle?

BlackZzzverrR [31]

Circumference, C = 2 $\pi$ r. Find the radius using this formula then use it to find the area with A = $\pi$ $r^{2}$ .

OR use the formula A = $\frac{C ^{2} }{4\pi }$

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3 years ago