Adding all of the together would be 471... but I need clarification on the problem
Answer:
Error in the sphere's surface: 29
and relative error in surface measure: 0.011
Error in the sphere's volume: 205
and relative error in the volume measure: 0.017
Step-by-step explanation:
(a)
The measured length (l) of the circumference is 90 cm with an error of 0.5 cm, that is:

and with regards to the error:

then when we use the formula for the sphere's surface, we get:

Then the relative error in the surface is:

(b)
Use the formula for the volume of the sphere:

Then the relative error in the volume is:

Answer:
a > b > c
Step-by-step explanation:
The longest side is the one that sees the angle with the biggest measure
The angles are shown in the image, the third angle is 75 degrees (because the sum of interior angle is equal to 180)
So the list of the sides in descending order is as follows :
a > b > c (a sees angle measure 75, b sees angle measure 70, and c sees angle measure 35)
Answer:
$1.60
Step-by-step explanation:
12.73÷8 = 1.59125
(1.59 rounded is 1.60)