This is the concept of volumes of solid materials, to get the amount of wax needed to make the candle we will require to calculate for the volume of the candle.
volume=πr^2h
since we are given the circumference of the candle we need to get the radius first;
C=πd
C=31.416 cm
31.416=πd
d=31.416/π
d=10.0000 cm
Therefore the radius will be 5 cm.
The volume of the wax required to make the candle will be:
V=πr^2h
V=π*5^2*13
V=1,021.02 cm^3
To solve 1-20, you plug in the number for the variable that the variable is equal to e.i. a) x = -3 so you plug -3 in every place there is an x
-2(-3)^2 - 3(-3) + 1
-2(9) +9 + 1
-18 +10
-8
The solution to a) is -8.
Please leave a comment and let me know if you also need help with b-d or if you understand.
Answer:
The truck
Step-by-step explanation:
the bus --- 110/2=55 miles per hour
the truck --- 180/3=60 miles per hour
therefore the truck travels faster
For this we start by putting km into cm
53.23 x 100,000 = 5,323,000
Now we divide by 53 to see the total number of revolutions
5,323,000 / 53 = 100,433.962 revolutiona
