Here are some simple equations that can be a life saver with this stuff :
vol of a sphere =

Circumference =
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sorry this might not be very helpful. I haven't don't this since last year. You basically have to work backwards. so plug in 972 for V and then do (3/4)×3.14.
then take the answer u got for ^^ and divide it by 2? not sure.
A, C. A is obviously correct because it’s the e same thing and C you combine like terms (2n+n=3n,2+4=6,=3n+6) it’s not B because it’s not 18, it’s not D because you’d get 3n+18 and it’s not E because you’d get 3n+12, meaning the only correct answers are A and C
You can make 3 tens blocks and then 3 tens blocks but only two should be filled than for the third one fill 7 only
-4 = x - 7
-4 + 7 = x
3 = x
Therefore x = 3
Answer:
3
Step-by-step explanation:
the answer is 3, because you always have to add the numbers in paranthises first. and 5+3= 8. u bring down the -5 and you have -5 + 8 = 3.