Answer:
The shape of each cross-section of a 3D figure, relates to the volume because the area of the cross-section is determined by its shape and the area of this cross section is in the sum that calculates the volume of this 3D figure.
Step-by-step explanation:
An infinite sum of all the all the cross-sections of a 3D figure parallel to the base equals the volume of that 3D figure.
Hey there! The sum of (3x - 6) and (5x + 8) is 8x + 2.
Answer: a = 10
Step-by-step explanation: 6a + 12 = 72
-12 -12
6a = 60
6a/6 = 60/6
a = 10
Solve the equation 1/30 + 1/45 = 1/x
where x is the required time
multiply thru by 90x:-
3x + 2x = 90
x = 90 / 5 = 18
answer 18 minutes
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