Answer:
63mm
Step-by-step explanation:
7mm+8mm=15.
15×15=225
12×12=144(area equals base times height) add 225-144=81(here we are using the Pythagoras theory) so you search for the square root of 81 which is 9 meaning the height is 9. since we say area is 1/2base times height we should take 1/2 ×9×12=63.if the answer doesn't match with the answer in your book please tell me right away so that I can try another method thank you
Answer:
w=12
Step-by-step explanation:
4w-12+2w-3w-24=0
3w-36=0
3w=36
w=12
Answer:
Step-by-step explanation:
the property of zero,
multiplication property of zero
The second one is the true statement
