Answer:
150.72 units³
Step-by-step explanation:
volume = πr²h
= 3.14×4²×3
= 150.72
Answer:
midpoint: (7.5, 1.5)
Step-by-step explanation:
midpoint formula: ( (x1 + x2)/2 , (y1 + y2)/2 )
x1= 10
x2= 5
y1=1
y2=2
( 10 + 5 )/2 = 7.5
( 1 + 2 )/2 = 1.5
midpoint coordinates => ( 7.5 , 1.5 )
I assume that you mean: the length is 7cm more than the width, and the perimeter is 74 cm.
If so, we can write down the following system, where l and w represent, respectively, the length and the width:

We can easily solve the second equation:

And finally solve for the length:

Remember

translates to

so

translates to

remember, if a^b=c^b when b=b, then a=c
and x^-m=1/(x^m)
hmm


32=x⁵
5th root both sides
2=x
x=2
Answer:
C
Step-by-step explanation:
2 times 10 is 20. 2 times x is 2x. 2 times -4 is -8. So that gives you 20+2x-8. Combine like terms, so you don't have anything that matches with 2x, so you leave that aside. So you subtract/add 20-8 which gives you 12 and add the 2x on that. So the full answer is 2x+12.