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4 years ago

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Mathematics

1 answer:

8_murik_8 [283]4 years ago

6 0

Answer:

1/6

Step-by-step explanation:

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A cone with a height of 50 meters has a volume of 5400π meters cubed. What is the radius of the cone?

disa [49]

Answer:

r = 18m

Step-by-step explanation:

h = 50 m

Volume of cone = 5400π m³

$\frac{1}{3}\pi r^{2}h=5400\pi \\\\\\\frac{1}{3}\pi r^{2}*50=5400\pi \\\\\\r^{2}=\frac{5400* \pi *3 }{\pi * 50}\\\\\\r^{2}=108*3\\\\r^{2} = 324\\\\\\r=\sqrt{324}\\\\\\$

r = 18 m

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3 years ago

Population mean of 23,15,6,5,6

MrMuchimi

Answer:

mean=sum of all observations/no.of observations

mean =23+15+6+5+6/5

mean=55/5

mean=11

population mean =11

hope this answer helps

3 0

4 years ago

Seven more than twice his age is 51 in algaebric expression

kozerog [31]

7 + 2x = 51

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8 0

3 years ago

Read 2 more answers

Linn plans to wallpaper the 4 walls in her bedroom. The measurements are 9’ by 11’ by 8’. How many single rolls of wallpaper sho

Ann [662]

Answer: There are 4 rolls she should buy.

Step-by-step explanation:

Since we have given that

Length of wall = 9 feet

Width of wall = 11 feet

Height of wall = 8 feet

As we know the formula for "Area of four walls ":

$Area=2(l+b)h\\\\Area=2(9+11)\times 8\\\\Area=2\times 20\times 8\\\\Area=320\ ft^2$

Area of each single roll covers = 72 square feet

So, Number of single rolls of wallpaper is given by

$\frac{\text{ Area of 4 walls}}{\text{ Area of single roll}}\\\\=\frac{320}{72}\\\\=4.44\\\\=4$

Hence, there are 4 rolls she should buy.

6 0

4 years ago

The exterior angle measure of a regular polygon is 20 degrees. How many sides does the polygon have?

Gwar [14]

The polygon has 18 sides. To find an exterior angle you have to divide 360 by the number of sides in the polygon to find the measure of an exterior angle. Since each exterior angle equals 20 degrees, you would divide 360 by 20 which would equal 18 sides.

3 0

3 years ago

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