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solong [7]
2 years ago
15

Surface area question:

Mathematics
1 answer:
Dafna1 [17]2 years ago
3 0

Answer:

190π (not part of the answer choices)

Step-by-step explanation:

The surface area of a cylinder can be found using the formula below:

SA=2\pi r^2+\pi dh where r is the radius of the base, d is the diameter of the base and h is the height of the cylinder.

Plug in the given values

SA=2\pi (\frac{10}{2}) ^2+\pi (10)(14)\\SA=2\pi (\frac{100}{4})+140\pi\\SA=2\pi (25)+140\pi\\SA=50\pi+140\pi\\SA=190\pi

Therefore, although this answer isn't one of the choices, the surface area of the cylinder is 190π.

I hope this helps!

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Andre and Morgan are both headed to Florida for vacation. Andre will drive 70 miles per hour. Morgan will drive 55 miles per hou
babymother [125]

Answer:

The number of hours Moran wold have driven before Andre catches up with him is 14 hours

Step-by-step explanation:

The given information are;

The speed with which Andre will drive = 70 miles per hour

The speed with which Morgan will drive = 55 miles per hour

The time of departure of Morgan = 3 hours before Andre departs

Let the time at which Andre catches up with Morgan be, t

We have, from the definition of distance traveled;

Distance traveled =Speed × Time

The distance Morgan would have driven in t hours = 55 × t

Given that to catch up with Morgan, Andre has to travel the same distance, and that Andre starts 3 hours late, we have;

The distance Andre would  drive when Morgan has driven for t hours = 70 × (t - 3)

Therefore, since the distance at the point they meet is the same distance for them both, we have;

55 × t = 70 × (t - 3)

55 × t = 70 × t - 210

210 = 70 × t - 55 × t  = 15 × t

t = 210/15 = 14 hours

Therefore, Morgan would have driven for 14 hours before Andre catches uo with him.

4 0
3 years ago
Which equation has the solution x = 3?
dybincka [34]

Answer:

2x + 4 = 10 = x =3

Step-by-step explanation:

09 - 31 = 0  (the variable x is not present in the given system)

0 +5=6  (the variable x is not present in the given system)

2x + 4 = 10  = x = 3

09-1=4  (the variable x is not present in the given system)

51 - 7 = 1  (the variable x is not present in the given system)

3x + 1 = 9 = x = 8/3

6 0
3 years ago
a baseball team played 147 regular season games. The ratio of the games they won to the number of games they lost was 2/5. How m
postnew [5]

Answer:

~59 games won, ~88 games lost

Step-by-step explanation:

I divided 147 by 5 to do a base unit. Then I multiplied by 2 for the amount won, then I multiplied by 3 for the amount lost. Hope this helps!

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3 years ago
Problem ID: PRABEAF4
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What is the question?
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3 years ago
Given a term in an arithmetic sequence and the common difference find the recursive formula and the
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Here's link^{} to the answer:

bit.^{}ly/3gVQKw3

8 0
3 years ago
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