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Sever21 [200]
4 years ago
13

Urgent question in Mathematics. Solve this to get 15 points

Mathematics
2 answers:
Crazy boy [7]4 years ago
5 0
The correct answer is B
Mnenie [13.5K]4 years ago
3 0

Answer:

1.

Step-by-step explanation:

Note that 2^4 - 2^3 = 16 - 8 = 8 = 2^3

In a similar way 2^6 - 2^5 = 64 - 32 = 32 = 2^5.

So 2^99 - 2^98 = 2^98 ,  2^98 - 2^97 = 2^97 ,  2^97 - 2^96 = 2^96 and so on.

Therefore when we come to the last 2 terms we have 2^1 - 2^0 = 2 - 1

= 1 , so the answer is 1.

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A cylinder has a volume of 320 pi cu. in. and a height of 5". Find the radius of the cylinder.
crimeas [40]

Answer:

The radius of cylinder is 8 inches.

Step-by-step explanation:

We have given,

Volume of cylinder = 320π   cubic inches

Height of cylinder = 5 inches

We know, Formula for volume of cylinder as : V =πr²h

where r is radius of cylinder and h is the height of cylinder.

So, We can plug values for V and h to get radius of cylinder.

i.e  V = πr²h

320π = πr²* 5

Solving for r.

We get,

320 = r² * 5

320/5 = r²

64 = r²

or r = ±8 , Since radius of cylinder can not a negative number so we neglect -8.

Hence the radius of cylinder is 8 inches.


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3 years ago
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If a quadrilateral is a parallelogram, then its diagonals bisect each other. If a quadrilateral is a parallelogram, then consecutive angles are supplementary. If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram.

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3 years ago
Find the slope of the line through each pair of points using the formula.<br> (17, -19) (4, -15)
RUDIKE [14]

Answer:

-4/13

Step-by-step explanation:

(17 , -19)  ; (4 , -15)

Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

          = \frac{-15-[-19]}{4-17}\\\\=\frac{-15+19}{4-17}\\\\=\frac{4}{-13}\\\\= \frac{-4}{13}

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