Answer:
To subtract a number from another number, the sign of the number (which is to be subtracted) should be changed and then this number with the changed sign, should be added to the first number
Step-by-step explanation:
(i) Evaluate (+6) – (+2)
= (+6) + (-2) (charging the sign of the number to be subtracted and then adding)
On subtracting smaller number 2 from bigger number 6; we get 6 – 2 = 4
Since, the sign of bigger number is + (positive)
= +4 or 4
Therefore, (+6) – (+2) = 4
(ii) Evaluate (+5) – (-3)
= (+5) + (+3) (charging the sign of the number to be subtracted and then adding)
We know, to add a positive (+ ve) number to a positive (+ ve) number, the numbers should be added and positive sign should be attached to the sum obtained.
= +8
Therefore, (+5) – (-3) = 8
The angles are complementary meaning they =90 degrees.
So take (x-20) and x, and write this equation,
x-20+x=90
2x-20=90
move the 20 over
2x-20=90
+20 +20
2x=110
x=55.
You can check it by plugging it back in,
(55-20)=35
and
x=55
35+55=90.
Thus, you know your answer is correct.
Answer:
Option c. 11,488.21 cm3
Step-by-step explanation:
<u><em>The picture of the question in the attached figure</em></u>
we know that
The volume of the sphere is equal to
we have
---> the radius is half the diameter
substitute
12.5% goes to .125
so .125 as a fraction is:
Since the square root of 3 can be re written as 3^-2 or 3^1/2, doing the same with the second factor will yield “3^1/2 • 3^1/5” thus, proceed to follow the Exponent Laws and you will have 3^1/2+1/5 which equals 3^5/10+2/10 which equals 3^7/10.
