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ivanzaharov [21]
3 years ago
13

Find the volume of a cylinder with height 12 cm and diameter 7 cm.

Mathematics
1 answer:
Svet_ta [14]3 years ago
3 0
<span>461.81 cm^3 .................................</span>
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Which unit abbreviation is a measurement of force?
Effectus [21]
<h3>Answer: C. N </h3>

N stands for Newtons

In terms of SI units, 1 newton = 1 kg m/s^2

It's based off the equation F = ma, which is Newton's second law.

------------

Extra info:

  • Choice A is velocity
  • Choice B is acceleration
  • Choice D is some unit I don't really recognize, so I'm not sure if its nonsense or it may have some use. Though I'm sure that N/s isn't a measurement of force.

3 0
3 years ago
The per capita electric power consumption level in a recent year in Ecuador is normally distributed, with a mean of 471.5 kilo-w
Olin [163]

Answer:

a) 471.5 kilo-watt hours.

b) 31.76 kilo-watt hours

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For the population:

Mean 471.5 kilo-watt hours.

Standard deviation of 187.9 kilowatt-hours.

For the sample:

Sample size of 35, by the Central Limit Theorem:

a) Mean

471.5 kilo-watt hours.

b) Standard deviation

s = \frac{187.9}{\sqrt{35}} = 31.76

31.76 kilo-watt hours

7 0
3 years ago
1. Carl has 56 marbles. He has
kotegsom [21]

Answer:

8 marbles

Step-by-step explanation:

Since Carl has 7 times as many marbles as Bill (who is the base unit), Carl's number of marbles is equal to 7 units.

7 units = 56

1 unit =

56 \div 7 = 8

Bill has 8 marbles.

4 0
3 years ago
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Zachary went to the store to buy some walnuts. The price per pound of the walnuts is
Katen [24]
The answer is 12.50 and equation is y=5.25p -3.25
5 0
3 years ago
In circle O, the radius is 4, and the length of minor arc AB is 4.2 feet. Find the measure of minor arc AB to the nearest degree
Degger [83]

The formula for arc length is s=r*angle theta where s is the arc length, r is the radius, and angle theta is central angle formed by the arc in radians.

In this case, the angle would be s/r or 4.2/4  which is 1.05 radians. We have to convert this into degrees and so you would multiply 1.05 by (180/pi) which results in approximately 60 degrees. Remember, if you want to convert radians into degrees, the conversion factor is 180/pi and for degrees into radians, it is pi/180.

4 0
3 years ago
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