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e-lub [12.9K]
2 years ago
7

a sphere and a cone have the same volume. each figure has a radius of 3 inches. what is the height of cone

Mathematics
1 answer:
jok3333 [9.3K]2 years ago
8 0
(4/3) Pi r^3 = (1/3) Pi r^2 h
Solving for h = 4r
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Salma Serra purchased a truck. last year she drove the truck 12,340 miles. the fixes costs totaled $1,428 , while variable cost
mario62 [17]

Answer:

20.61952

Step-by-step explanation:

hope it helps

8 0
3 years ago
The sum of two numbers a and b is 7 and the difference between them is 2. What is the value of a x b ? Give your answer as a mix
Andre45 [30]

Answer:

45/4

Step-by-step explanation:

We can interpret the question to have two equation which can be solve simultaneously

a+b=7------------(1)

a-b=2------------(2)

From eqn(2) make a subject of formula

a=2+b--------(3)

Substitute the (3) into eqn(1)

a+b=7------------(1)

2+b+b=7

2b=7-2

2b=5

b=5/2

From equation (3) substitute value of b to find a

a=2+b--------(3)

a= 2+5/2

a=9/2

Then What is the value of a x b ?

9/2× 5/2

=45/4

8 0
2 years ago
At an auditorium, 3 1/2 sections are filled with people watching a play. Exactly 3/5 of the people watching the play are parents
worty [1.4K]

Answer:

Fraction[Total number of sections filled filled with parents] = 2¹/₁₀ section

Step-by-step explanation:

Given:

Total number of sections filled = 3¹/₂ = 7 / 2 sections

Number of fraction parents watching play = 3/5

Find:

Fraction[Total number of sections filled filled with parents]

Computation:

Fraction[Total number of sections filled filled with parents] = Total number of sections filled x Number of fraction parents watching play

Fraction[Total number of sections filled filled with parents] = [7/2] x [3/5]

Fraction[Total number of sections filled filled with parents] = 21 / 10 sections

Fraction[Total number of sections filled filled with parents] = 2¹/₁₀ section

5 0
3 years ago
you want to put 2000 in a simple intrest account. it has 2.5 annual intrest rate. how long will it take you to earn 500 in intre
mash [69]
Interest = PRT /100

500 = 2000*2.5*T / 100
5000T = 50,000
T = 50,000 / 5000 = 10 years
5 0
3 years ago
You and a friend go to the local taco joint for lunch. You order three tacos and three burritos and your bill totals $11.25. You
anzhelika [568]

Answer:

d

Step-by-step explanation:

6 0
2 years ago
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