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Schach [20]
2 years ago
6

Find the surface area of a cylinder with height of 8 feet and base diameter of 6 feet

Mathematics
2 answers:
Minchanka [31]2 years ago
5 0
The answer is A≈207.35ft²
PSYCHO15rus [73]2 years ago
5 0

Answer:

66\pi ft²

Step-by-step explanation:

First find the area of the rectangle surrounding the cylinder.

Since the base diameter is 6 feet, the circumference =\pi d=6\pi.

Since the height is 8 feet, the area of the rectangle is 6\pi\times8 or 48\pi

Now the area of the base circle =\pi r^2 = \pi\times\frac{1}{4}d^2=9\pi

There are 2 base circles, so 9\pi\times2=18\pi

Surface area = 18\pi+48\pi=66\pi ft²

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Simplify this expression.<br><br> -2 &lt; -1.5p - 8
morpeh [17]

-2 < -1,5p - 8

-1,5p - 8 > -2

-1,5p > -2 + 8

-1,5p > 6 / : (-1,5)

<u>x</u><u> </u><u><</u><u> </u><u>4</u>

5 0
3 years ago
Which inequality is true 1.5 &gt; 2 1/2, 1/2 &gt; 0.5, -2.5 &gt; -1.5, -3 1/2 &gt; - 4.5
yawa3891 [41]

Answer: D

Step-by-step explanation:

(A. 1.5 > 2 1/2

(B. 1/2 > 0.5

(C. -2.5 > -1.5

(D. -3 1/2 > - 4.5

Step 1: Convert everything to decimals or fractions so its easier to see and make it less likely to get the question wrong

Method #1: Fractions

1.5= 1 1/2

0.5= 1/2

-2.5= - 2 1/2

-1.5= - 1 1/2

-4.5= -4 1/2

Now we have:

(A. 1 1/2 > 2 1/2 --> This is wrong because 1 1/2 is supposed to be less than 2 1/2.

(B. 1/2 > 1/2 This is also wrong. 1/2 is equal to 1/2; they are obviously the same.

(C. -2 1/2 > -1 1/2 This is wrong because, in negative numbers, its sort of backwards. For example, -2 is actually less than -1 because its farther away from 0. But if they were normal positive numbers, 2 would be bigger. But here, -2 1/2 is less than -1 1/2.

(D. -3 1/2 > - 4 1/2 This is correct. -3 1/2 is closer to 0 than -4 1/2, so it has to be bigger.

Solving the problem this way gets me to: Answer= D

Method #2: Decimals (remember: same numbers, different way of writing them!!!)

(A. 1.5 > 2.5 False. 1.5 is less than 2.5

(B. 0.5 > 0.5 False. 0.5 is equal to 0.5

(C. -2.5 > -1.5 False. -2.5 is farther away from 0 so its actually smaller.

(D. -3.5 > - 4.5 True. -3.5 is closer to 0.

Doing it this way also leads me to Answer= D.

Hope this helps :)) Also can i please have brainiest? I worked pretty hard on this :D

6 0
2 years ago
Read 2 more answers
HELP ASAP!!! Find the least common multiple (LCM) of 8 and 12
yulyashka [42]

Answer:

24

Step-by-step explanation:

8 0
3 years ago
Help. Does anyone know how to do this?
tatuchka [14]

Answer:

x = 12, so PTQ = 40 deg

Step-by-step explanation:

first, because the two are vertically opposite, they are equal, write a formula for this:

x + 28 = 2x + 16 (minus 2x from both sides)

-1x + 28 = 16 (minus 28 from both sides)

-1x = -12 (divide both sides by -1)

x = 12

sub into formula:

12 + 28 = 40

8 0
3 years ago
ANSWER AND ILL GIVE BRAINLIEST 30 PTS
diamong [38]
I think the 3rd one is correct. Hope this helps!
5 0
3 years ago
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