2 years ago

Find the least common denominator (LCD) of

Mathematics

1 answer:

GaryK [48]2 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

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

Read 2 more answers

Whats the midline equation ?

PSYCHO15rus [73]

Answer:

sorry i did not see my link

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Scotty had $2 on his meal card at college.He knew that he could overspend and pay the bill at a later times.He bought a candy ba

Paul [167]

2.00 - 1.50 = 0.50
0.50 - 1.75 = -1.25
Solution: he owns $1.25

6 0

2 years ago

Read 2 more answers

Use the distributive property to write -2(x + 5) as an equivalent expression

mamaluj [8]

Answer:

kdkdkdvjkccc

Step-by-step explanation: oh night longg

6 0

3 years ago

If sin x = 0.5 what is the value of cos X?<br>round the value to the nearest thousandth

Mariana [72]

Cos(arcsin(0.5)) = 0.866

8 0

3 years ago

Read 2 more answers