4/3x3.14x5x5x5 volume

Answers

Answer 1

Answer: 523.6 m3 i hope this helps mark me as brainliest

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Which is greater, 4 or 126?
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What is the sum of the first five terms of the geometric sequence in which a1=5 and r=1/5?

Answers

Sum of series of G.P. = Sn = a(1-rⁿ) / 1-r
Here, a = 5
r = 1/5

Substitute their values into the expression:
Sn = 5(1-1/5⁵) / 1 - 1/5
Sn = 5*5/4 [1-1/3125]
Sn = 25/4 [ 3124/3125]
Sn = 781 / 125

In short, Your Answer would be 781/125 in fraction form
or 6.248 in decimal form

Hope this helps!

Divide 30 in a ratio of 3:2

Answers

$Other\ method:\n\nx;y-searches\n\n \left\{\begin{array}{ccc}x+y=30&|subtract\ y\ from\ both\ sides\nx:y=3:2\end{array}\right\n\left\{\begin{array}{ccc}x=30-y&(1)\n(x)/(y)=(3)/(2)&(2)\end{array}\right\n\nsubtitute\ (1)\ to\ (2):\n\n(30-y)/(y)=(3)/(2)\ \ \ \ |cross\ multiply\n\n(3)(y)=(2)(30-y)\n3y=60-2y\ \ \ \ |add\ 2y\ to\ both\ sides\n5y=60\ \ \ \ |divide\ both\ sides\ by\ 5\n\boxed{y=12}$

$Put\ the\ value\ of\ y\ to\ (1):\nx=30-12\n\boxed{x=18}\n\nAnswer:\boxed{\left\{\begin{array}{ccc}x=18\ny=12\end{array}\right\to18:12}$

3+2=5
30 divided by 5=6
6X3=18
6X2=12
18+12=30
18:12

Complete the conditional statement. If -2a > 6, then _____.