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Morgarella [4.7K]

3 years ago

14

Factories

="absmiddle" class="latex-formula">

1 answer:

marissa [1.9K]3 years ago

8 0

Answer:

(4z-5a)(2xy)

Step-by-step explanation:

8xyz-10axy

Check for similar terms/like terms

x and y are the same.

The hcf or highest common factor is 2.

The z and a are not common in both terms.

Factor.

8xyz-10axy

2xy(4z-5a)

(4z-5a)(2xy)

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Deangelo has $7 worth of dimes and quarters in a jar. He has 7 more quarters than dimes.

svlad2 [7]

D=number of dimes
q=number of quarters

let's count everything in cents
dimes are worth 10 cents
quarters are worth 25 cents

10d+25q=700
divide both sides by 5
2d+5q=140

he has 7 more quarters than dimes
q=7+d
subsitute 7+d for q in other equation

2d+5q=140
2d+5(7+d)=140
2d+35+5d=140
7d+35=140
minus 35 both sides
7d=105
divide both sides by 7
d=15

sub back

q=7+d
q=7+15
q=22

22 quarters and 15 dimes

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2 1/2 more pounds of carrots.

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3 years ago

An engine cylinder 13.7 cm deep is being bored such that the radius increases by 0.13 mm divided by min. How fast is the volume

zzz [600]

Answer:

Step-by-step explanation:

Given that an engine cylinder 13.7 cm deep is being bored such that the radius increases by 0.13 mm divided by min.

We convert everything in mm for uniformity

We have formula for volume as

$V=\pi r^2 h$

Given that $\frac{dr}{dt} =0.13$

h is constant

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Is there a multiple of 3? And why not or why yes?

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Yes there is because u can multiply it by different numbers except for 1 and 0

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Find the slope of the line that is parallel and perpendicular <br><br> -7x-2y=4

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$\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{7}{2}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{2}{7}}\qquad \stackrel{negative~reciprocal}{\cfrac{2}{7}}}$

now, what's the slope of a line parallel to that one above? well, parallel lines have exactly the same slope.

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