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ryzh [129]
3 years ago
13

HELP!!!! Due in 1 hour.

Mathematics
1 answer:
IrinaK [193]3 years ago
6 0

Answer

these nut in you'er mouth

Step-by-step explanation:

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B) The number of volume of a cylinder is half of its number of the total surface area.
faust18 [17]

Answer:

V=179.6cm^3

Step-by-step explanation:

the volume of a cylinder is given by:

V=\pi r^2h

where r is the radius and h is the height.

and the surface area:

SA=2\pi r^2+2\pi rh

the first term is the area of the circles and the second term is the area of the body.

since "The number of volume of a cylinder is half of its number of the total surface area." we will have that:

V=\frac{1}{2}SA

substitutig the equivalent expressions on each side:

\pi r^2 h = \frac{1}{2} (2\pi r^2+2\pi r h)

and we simplify and solve for the height (since is the value we don't know of the cylinder):

\pi r^2 h = \pi r^2+\pi r h\\\pi r^2h-\pi rh=\pi r^2\\h(\pi r^2-\pi r)=\pi r^2\\h=\pi r^2/(\pi r^2-\pi r)

we substitute the value of the radius r=7cm, and we get:

h=\pi (7cm)^2/(\pi (7cm)^2-\pi (7cm))\\h=153.938/(153.938-21.991)\\h=153.938/131.947\\h=1.1666cm

thus the volume is:

V=\pi r^2h

V=\pi (7cm)^2(1.1666cm)\\V=179.6cm^3

3 0
3 years ago
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Please Help!<br> Evaluate 5v+w for v=4 and w=16
Harrizon [31]

Answer:

20+16= 36

Step-by-step explanation:

4 0
3 years ago
You randomly survey men and women about whether they plan to watch a football game on Sunday afternoon. A total of 40 men plan t
Alecsey [184]

Answer: 101

Step-by-step explanation:

45 women total

17 women will not watch the game

So 33 people did not want to watch the game and 17 are women

33-17 = 16 men who won’t watch the game

So 40 men who will and 16 men who won’t equals 56 men and 45 women

56+45= 101

5 0
3 years ago
What equation has the solution x= 5+2 square root of 7 divided 3
Paraphin [41]
Put it in the calculator and the answer is 3.4305
7 0
3 years ago
Find the LCM (least common multiple) of 15 and 8.<br><br> LCM =
vaieri [72.5K]

Answer:

120

Step-by-step explanation:

7 0
3 years ago
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