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slamgirl [31]
3 years ago
15

What is the sum of the first positive even numbers?

Mathematics
1 answer:
ioda3 years ago
8 0

Answer:

Step-by-step explanation:

6

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The volume of a cylinder is 156 x cm3. What is the volume of a cone with the same base and height as the cylinder?
Flura [38]

Answer: SECOND OPTION (52 cm³)

Step-by-step explanation:

The formula for calculate the volume of a cone is:

V{co}=\frac{1}{3}r^{2}h\pi

Where r is the radius and h is the height.

 The formula for calculate the volume of a cylinder is:

V{cy}=r^{2}h\pi

Where r is the radius and h is the height.

As you can see, the difference between the the formulas is that r²hπ of the cone is divided by 3. Therefore, if you know the volume of the cylinder and you know that the cone has the same base and height as the cylinder, you have to divide the volume of the cylinder by 3 to obtain the volume of the cone.

Therefore, the result is:

V{co}=\frac{156cm^3}{3}=52cm^3

7 0
3 years ago
Read 2 more answers
85 is what percent of 170?
natta225 [31]
121.4285%
Hope this helped
5 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLYIST IM BEING TIMED PLS HELP ASAP PLS PLS PLS PLS I WILL FAIL
nasty-shy [4]

Answer:

.35 per minute. single variables.

4 0
3 years ago
A pair of headphones is on sale for 15% off. What percent of the regular price is the sale price? Explain your thinking.
Elina [12.6K]

Answer:

85%

Step-by-step explanation:

Generally, you pay 100% of the total cost. However, you get 15% off. This means that all you have to do is 100-15 to get 85.

6 0
3 years ago
2( 4x + 2) = 4x - 12(x-1)​
aksik [14]

Answer:

x=\frac{1}{2}

Step-by-step explanation:

distribute 2 into (4x+2) and -12 into (x-1)

8x+4=4x-12x+12

combine like terms

8x+4=-8x+12

add -8x on both sides

8x+8x+4=12

16x+4=12

subtract 4 on both sides

16x=8

divide both sides by 16

x=1/2

hope this helps

8 0
3 years ago
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