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2 years ago

Solve for x. 20 - 9<5 Write answer in interval notation.

Mathematics

1 answer:

Ad libitum [116K]2 years ago

6 0

There’s no x in your equation to solve for?

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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

2 years ago

Read 2 more answers

Pls help ASAP i don’t have time!!!!!

Lesechka [4]

Answer:

Step-by-step explanation:

Let the width be W.

14w=(8*10)

14w=80

The width of the frame needs to be at least 5.7 inches.

6 0

2 years ago

17-2 (6-4)(7-3)-7. worth 10 points

Leni [432]

17-2(6-4)(7-3)-7
17-2(2)(4)-7
17-2(8)-7
17-16-7
1-7
-6

6 0

2 years ago

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Which graph shows the correct representation of {x | x ≤ 5}?

Andrew [12]

Answer:

third choice

Step-by-step explanation:

That would be the third one. It has to be a closed circle because it includes the sign, ≤ meaning that it also has the number 5 included. The numbers that go to the left of 5 are smaller, too.

3 0

2 years ago

Factor 1/2 out of 1/2x - 33/2

babymother [125]

Answer:

Step-by-step explanation:

1/2x-33/2=1/2(x-33)

6 0

3 years ago