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Serga [27]
3 years ago
7

Which expression represents the volume of the pyramid?

Mathematics
1 answer:
Arada [10]3 years ago
6 0

Answer:

V=\frac{1}{3}(n^2)(n-1)\ units^3

Step-by-step explanation:

we know that

The volume of the pyramid is equal to

V=\frac{1}{3}Bh

where

B is the area of the base of pyramid

h is the height of the pyramid

<em>Find the area of the base B</em>

The area of the square base B is

B=n^2\ units^2

we have

h=(n-1)\ units

substitute the given values in the formula of volume

V=\frac{1}{3}(n^2)(n-1)\ units^3

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Which of the following events are independent?
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1 only

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because it talks about a coin and a dice and the rest is about cards

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consider a wire 2 ft long cut into two pieces. one piece forms a circle with radius r and the other forms a square with side len
makkiz [27]

The formula for the radius r in terms of x . and for the maximum areas is x=2/\pi+4

Given that,

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y=2\pir

r=y/2\pi

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Substitute the r and x values in above equation,

A(y)= y²/4\pi+(y-2)²/ 16

To maximize Area A(y)

A'(y)= 0

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Y max will be max, x to be maximum.

for maximum sum of areas,

x=2/\pi+4

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4 0
1 year ago
the difference between two numbers is 10 and their sum is four times the smaller number. find the two numbers
Vanyuwa [196]

Answer:

The smaller number is 5.

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Step-by-step explanation:

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x+x+10 = 4x

2x+10 = 4x

10 = 4x-2x

2x = 10

x = 10÷2

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8 0
3 years ago
What number comes next in this pattern? 46, 49, 52, 55, 58,...
Ksenya-84 [330]

Answer:

61

Step-by-step explanation:

just add 3 to the next one

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