Answer:
-6
Step-by-step explanation:
Substitutet -7 for y in -3(9+y): -3(9 - 7) = -3(2) = -6
To find the exact volume of a cylinder, you must remember the rule - π r2 h
If 6 inches was the base (radius from the center of the cylinder to the edge) and 9 inches was the height, the equation would look like this -
π (6 squared in) (9 in)
Remember that the radius is squared so the equation would then look like
π (36 in) (9in)
Now you multiply 36 and 9 which would give you 324, then your equation would look like this
324 π
The final step is to multiply 324 by π which would be the volume of a cylinder.
Answer:
$131.25
Step-by-step explanation:
Take the $175 price and divide it by 0.25, which is the decimal version of 25%. You should get 43.25 which is 25% of 175. Then subtract 43.25 from 175 to get the final answer of $131.25 for the CD player if Martin buys it on Wednesday.
