2 years ago

(5x2+4xy-7)+(3x2+2xy+3)

Mathematics

1 answer:

Juliette [100K]2 years ago

3 0

Answer:

8x² + 6xy - 4

Step-by-step explanation:

(5x² + 4xy - 7) + (3x² + 2xy + 3) ← remove parenthesis

= 5x² + 4xy - 7 + 3x² + 2xy + 3 ← collect like terms

= 8x² + 6xy - 4

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3(y+7)+8y plz be spacific and answer correctly, im counting on you. :)

Galina-37 [17]

Answer:

11y + 21

Step-by-step explanation:

mutipily 3 by y + 7 bc 3 is right outside of the parentheis which means to mutipily. Then u get 3y +21 +8y. then simpilfy

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3 years ago

If a rectangular. Prism. Has 5cm. 10cm on one side and 4cm on the. Other. What is the volume of the rectangle?

emmasim [6.3K]

Answer: $200\ cm^3$

Step-by-step explanation:

Given

The dimension of the rectangular prism is

$l=5\ cm\\w=10\ cm\\h=4\ cm$

The volume of the prism is given by $V=l\times w\times h$

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3 years ago

What is the gcf of 25 and 90

Yuliya22 [10]

25 = 5^2
90 = 2 . 3 . 3 . 5

GCF is not as greedy as LCM.
GCF is just on a diet, so it takes the same number and the smallest amount.

25 and 90 both have 5.
5^2 or 5 ?
Take the smaller one.
GCF = 5

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3 years ago

The equation of a line parallel to 2x−y+4=0 that passes through the point ( -1, 5) is ___?

IrinaK [193]

Answer:

y=2x+7

Step-by-step explanation:

2x−y+4=0

y=2x+4

m=2

Line are parallel, so their slope is the same.

A(-1,5)... x1 =-1,y1 =5

y-y1 =m(x-x1)

y1 - 5=2(x-(-1))

y1 - 5=2(x+1)

y1-5=2x+2

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y=2x+7

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yanalaym [24]

The answer is 5
Your welcome :)

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3 years ago

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