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Gnoma [55]
3 years ago
6

36x^4/ 42x^7 Rational expressions Show work along with it PLEASE HELP! :)

Mathematics
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

=6/7x^3

Step-by-step explanation:

36x^4/42x^7

(36/42)(x^4/x^7)

6/7(x^-3)

6(x^-3)/7

6/7x^3

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The sides of the rectangle are in the ratio of 4:7. If its length is 31.5 in., find the width, the perimeter, and the area of th
AveGali [126]
Let \ell the length and w the width. By the ratio of the sides:

\dfrac{w}{\ell}=\dfrac{4}{7}\Longrightarrow \dfrac{w}{31.5}=\dfrac{4}{7}\Longrightarrow w=\dfrac{4\cdot31.5}{7}\Longrightarrow \boxed{w=18~in.}

Now, we'll find the perimeter p. We'll use the formula below:

p=2(\ell+w)\\\\
p=2(31.5+18)\\\\
p=2\cdot49.5\\\\
\boxed{p=99~in.}

The area of a rectangle is S=w\cdot\ell. Then:

S=w\cdot\ell\\\\
S=18\cdot31.5\\\\
\boxed{S=567~in.^2}
8 0
4 years ago
Read 2 more answers
Find the area of the figure. round your answer to the nearest hundredth
liraira [26]

Answer: 84.14

Step-by-step explanation:

Area of the rectangle is L*W=B*H

14*5=70

To find the area of the half circle we must use the formula pi r^2/2

r=radius

and the radius is 6 because we add 4 and 4 and need to get to 14

because the line below it is 14 and it is a rectangle so the lengths are the same.

Diameter=6

So radius =3

pi (3)^2/2=

9/2 pi + 70=

84.14

6 0
3 years ago
Read 2 more answers
KJ=3x+12 And KH=6x-15. What is KG?
Andreyy89

Answer:

39


Step-by-step explanation:

3x + 12 = 6x - 15

6x - 3x = 12 + 15

3x = 27

x = 9


KJ = KH = KG = 3x + 12

KG = 3.(9) + 12

KG = 27 + 12

KG = 39


I hope I helped you.

7 0
3 years ago
10 POINTS PLZ HELP A GIRL OUT
Georgia [21]

Answer:

201

Step-by-step explanation:

What you do is you first find the formula which is 3.14(r^2)(h/3)

So it will be 3,14(4^2)(12/3). why it is 4 is because a radius is half the length of the circle and they gave you the length of the full circle so you half it.

Your answer is 200.96 but to the nearest whole number is 201.

3 0
3 years ago
during a family trip you share the driving with your dad at most you're allowed to drive for three hours while driving your maxi
blagie [28]

Answer:

You have driven 165 miles

Step-by-step explanation:

55•3=165, 160+5=165, so yes, it is possible

8 0
4 years ago
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