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Vanyuwa [196]
2 years ago
15

Right Answer to theese three questions please???

Mathematics
1 answer:
Scilla [17]2 years ago
4 0
I hope this helps you

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Solve:<br> y" + 14y' + 49y = 8xe^-7x
erma4kov [3.2K]
The answer is 7x^2e-/8

8 0
2 years ago
Find the surface area of a sphere with a radius of 12 cm. Approximate 3.14 and round your answer to the nearest hundredth
attashe74 [19]
The equation to find a spheres surface area is 4 pi R ^2
and this works in any order 

4 * 12 is 48 (4 * R)

48^2 is 2304 ((4 * R)^2)

the exact answer is 2304\pi

the full answer is 7234.56 (((4 * R)^2)\pi)
5 0
2 years ago
Read 2 more answers
1
Svet_ta [14]

Answer:

108π

Step-by-step explanation:

1/3 × 9 × π × (6²)

1/3 × 9π6²

(1 × 9π6²) / 3

(6² × 9π) / 3

6² × 3π

36 × 3π

108π

7 0
3 years ago
A football team loses 3 yards on one play and 6 yards on another play.write a sum of negative integers to represent this situati
Airida [17]

Sum = (-3) + (-6) = -9

Yards gained are positive, and yards lost are negative.

If you lose 3 yards on one play and 6 yards on another, you have lost a total of 9 yards.

7 0
3 years ago
You have 480 feet of fencing to enclose a rectangular garden. You want the length of the garden to be 30 feet greater than the w
makkiz [27]

Answer:

L=135 W=105

Step-by-step explanation:

Your rectangle has two length sides and two width sides. That means two sides are 30 feet longer than the other sides. If you subtract 60 from 480, you get 420. Divide 420 by 4 and you get 105. So now you know the width sides are 105 feet long, so 105+105=210. Now all you have to do is add 30 to 105 and get 135. That is the length of the two longer sides. So add 135 and 135 to get 270. All you have to do is add 210 and 270 and you end up with the 480 feet of fence you were given. I know this is probably not the fancy way of doing it, but it works.

8 0
3 years ago
Read 2 more answers
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