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liq [111]
3 years ago
12

The height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 247 cubic units.

Mathematics
1 answer:
12345 [234]3 years ago
7 0
It should be 6 units ..l hope this help
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Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified exact value in terms of
____ [38]

Answer:

So we have a triangle and a semicircle.

If the triangle is equilateral, this is:

AB = BC = 6cm

Then the area of the triangle is equal to (base*height)/2

in this case:

A = (6*6)/2 = 36/2 = 18cm^2.

And the diameter of the semicircle is equal to 6cm, then the diameter is 3cm

And if the area of a circle is A = pi*r^2

then the area of half a circle is:

A = (pi/2*)3^2 = pi*4.5cm^2

Then, the area of the triangle plus the area of the semicircle is:

Total area = 18cm^2 +  pi*4.5^2

3 0
3 years ago
Simplify this expression <br> 4(c - 3)
zavuch27 [327]

Answer:

4c - 12

Step-by-step explanation:

The brackets mean you multiply.

4 x c = 4c

4 x 3 = 12

3 0
3 years ago
Read 2 more answers
Mike can build a go cart in 30 days, Jed can build one in 20 days and Erick in 60 days. If all of them share the work, how quick
Gwar [14]

Answer: 10 days

<u>Step-by-step explanation:</u>

Mike: \frac{x}{30}

Jed: \frac{x}{20}

Erick: \frac{x}{60}

Together: \frac{x}{30} + \frac{x}{20} + \frac{x}{60} = 1

60(\frac{x}{30} + \frac{x}{20} + \frac{x}{60} = 1)

2x + 3x + x = 60

             6x = 60

               x = 10


4 0
3 years ago
Read 2 more answers
What is the area of a rectangle which has a perimeter of 60 m and a width of 10 m?
olga_2 [115]

Answer:

200

Step-by-step explanation:

please mark as brainliest if correct

thank you

5 0
3 years ago
For the past 40 days. Naomi has been recording the number of customers at her restaurant between 10:00 AM and 11:00 AM. During t
igor_vitrenko [27]

Answer:

The experimental probability there will be fewer than 20 customers on the forty-first day is 5/8, .625, 62.5%.

Step-by-step explanation

:


4 0
3 years ago
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