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Kazeer [188]
3 years ago
14

The viewing room at a planetarium is in the shape of a hemisphere. The diameter of the hemisphere is 48 feet. What is the volume

of the viewing room?
Mathematics
2 answers:
Setler [38]3 years ago
6 0

Answer:

9,216π cubic feet

Step-by-step explanation:

Elis [28]3 years ago
4 0
A hemisphere is half a sphere.
So, the volume of a hemisphere is the half of the volume of the complete sphere.
The formula for the volume of a sphere is:
V = (4/3) π (radius)^3
Using π = 3.14 and radius = diameter / 2 = 50 feet / 2 = 25 feet.
You get:
V = (4/3) (3.14) (25 feet)^3 = 65,416.7 feet^3
Answer: 65,416.7 cu. ft.

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A die is rolled once what is the probability of rolling a number less than 3
Effectus [21]

Answer:

2/6

2 in 6

33.33%

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Help please thank you
Zepler [3.9K]

Answer:

Step-by-step explanation:

The first two are incorrect. Only very special n's will work. (Every 10th one for n>0)

Just call A and B incorrect.

400o = 360 + 40

The answer is between C and D

The question is will a negative value for n work? Suppose n = - 1 That means you go around the circle clockwise 1 time and though the question does not say it, you must start at the positive x axis.

Having said that 40 is plus.

The 360 starts at the + x axis. It doesn't matter how it got there. 40 degrees from the +x axis is in the first quadrant. It always will be.

D is correct but C is the better answer because it includes D.

3 0
3 years ago
Can some one help me plz I really need help
Sonbull [250]
1. 2x + 50 = 100
subtract 50 on both sides and then divide by 2.

x = 25

180 - 100 = 80

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2. 7x - 4 = 87
add 4 on both sides and divide by 7.

x = 13

180 - 87 = 93

m
3. 5x - 2 = 38
add both sides by 2 and divide by 5.

x = 8

180 - 38 = 142

m
4. 14 + 6x = 134
subtract both sides by 14 and divide by 6.

x = 20

180 - 134 = 46

m
5. x = 53

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6. x = 14

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6 0
3 years ago
A right triangle ABC with height AB labeled 3 units and base BC labeled 5 units is shown. The area of the triangle above will eq
zhenek [66]

Answer:

Step-by-step explanation:

Answer:

w=3

Step-by-step explanation:

The area of the triangle is given by

A = 1/2 bh

the base is 5 and the height is 3

A = 1/2 (3) * 5 = 15/2  units ^2

The area of a rectangle is

A = l*w

A = 5w

The area of the triangle = 1/2 the area of the rectangle

15/2 = 1/2 *5w

15/2 = 5/2 w

Multiply each side by 2/5 to isolate w

2/5 * 15/2 = 2/5 *5/2 w

3 =w

Read more on Brainly.com - brainly.com/question/11938580#readmore

5 0
3 years ago
(n-5)/(n^2-25) how would i write this faction in simplest form?
mestny [16]
\dfrac{n-5}{n^2-25}  =  \dfrac{n-5}{(n+5)(n-5)} =  \dfrac{1}{n+5}
7 0
4 years ago
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