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Dimas [21]
3 years ago
14

The cylindrical water tank on a semitrailer has a length of 20 feet. The volume of the tank is equal to the product of pi, the s

quare of the radius of the tank, and the length of the tank. Let V represent the volume of the tank, r represent the radius of the tank, h represent the length of the tank.
Create an equation could be used to find volume, V, of the cylindrical tank.

Mathematics
1 answer:
Bogdan [553]3 years ago
7 0

Answer:

V = 20πr²

Step-by-step explanation:

In this question, volume of the cylindrical tank has been defined as,

Volume V of the tank = Product of π, the square of the radius of the tank 'r' and the length of the tank 'h'.

Therefore, formula to calculate the formula will be,

V = πr²h

If the length of the cylindrical trailer is,

h = 20 feet

Then the volume of the trailer will be,

V = πr²(20)

V = 20πr²

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five years ago Kate's age was four less than twice the Mary's age. If mary is 11 now, how old is kate now?
Natali [406]

Answer:

13 years old

Step-by-step explanation:

2x - 4

11-5=6

6 x 2 = 12

12 - 4 = 8

8 + 5 = 13

CHECKING JUST TO MAKE SURE:

13 - 5 = 8

11 - 5 = 6

6 x 2 = 12

12 - 8 = 4

You can now tell that it is correct.

5 0
3 years ago
17 1/3 + (-50 1/3) -5 1/2
vovangra [49]
<span>17 1/3 + (-50 1/3) -5 1/2 
= -33  - 5 1/2 
= (</span>-33 ) + ( - 5 1/2)
<span>= -38 1/2

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8 0
3 years ago
Read 2 more answers
What is the distance between (4,7) and (2, 2)?​
Art [367]
I’m pretty sure the distance would be (2,5)
5 0
2 years ago
Read 2 more answers
1/3v= -5 What is the value if v?
beks73 [17]

Given:

\frac{1}{3}v=-5

To get rid of the fraction, we can multiply both sides by the denominator, which is 3. This will cancel the fraction:

3(\frac{1}{3}v)=3(-5)

We are left with:

v=-15

3 0
3 years ago
Read 2 more answers
1. A sample consists of 75 TV sets purchased several years ago. The replacement times of those TV sets have a mean of 8.2 years.
Greeley [361]

Answer:

8.2+/-0.25

= ( 7.95, 8.45) years

the 95% confidence interval (a,b) = (7.95, 8.45) years

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 8.2 years

Standard deviation r = 1.1 years

Number of samples n = 75

Confidence interval = 95%

z value(at 95% confidence) = 1.96

Substituting the values we have;

8.2+/-1.96(1.1/√75)

8.2+/-1.96(0.127017059221)

8.2+/-0.248953436074

8.2+/-0.25

= ( 7.95, 8.45)

Therefore the 95% confidence interval (a,b) = (7.95, 8.45) years

3 0
2 years ago
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