HELP MEH PLEASE! THIS IS HALF MY GRADE! Subtract 16a+3 from 13a−5 . Which is the correct answer?
1 answer:
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The main rules that we use here are :
i)
for nonnegative values a and b.
ii)
.
Thus, first 'decompose' the numbers in the radicals into prime factors:
.
By rule (i) we write:
.
We can collect these terms as follows:
, and by rule (ii) we have:
Answer:
.
i)
ii)
Thus, first 'decompose' the numbers in the radicals into prime factors:
By rule (i) we write:
We can collect these terms as follows:
Answer:
The volume of the pyramid is 2496 cu.m.
<h3>What is a Pyramid ?</h3>A pyramid is a three dimensional structure which has a polygon base and in general triangular faces which join at the top .
It is given that
A pyramid has a 4 m by 4 m square top
Height = 12 m
Base = 20 m
The volume of a square pyramid with a is given by
V = (1/2) * ( Area of base + Area of ) * height of the
from the base
V = 0.5 * ( 20 *20 + 4*4 ) * 12
V = 2496 cu.m
The volume of the pyramid is 2496 cu.m.
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