V=(1/3)πr²h
∴ dV/dt
=(π/3)[r²(dh/dt)+h2r(dr/dt)]
=(π/3)[(30)²(-2)+40(2)(30)(2)]
=(π/3)[-1800+4800]
=1600π in³/sec
Answer: 1600π in³/sec
Answer:
42 units^2
Step-by-step explanation:
the area of the triangle is 7x12/2 = 42
Answer: D
Step-by-step explanation:
5-2=3 3x3=9 so X=5
Answer:
The correct answer is option A. 18x + 15
Step-by-step explanation:
It is given an expression in variable x,
5(4x + 3) - 2x
<u>To simplify the given expression
</u>
5(4x + 3) - 2x = (5 * 4x) + (5 * 3) - 2x (open the bracket)
= 20x + 15 - 2x
= 20x - 2x + 15
= 18x + 15
Therefore the correct answer is 18x + 15
The correct option is option A. 18x + 15
Answer:
you should use a equals sign
Step-by-step explanation:
because above is shows the same equation and the part that you need answered has a equals sign.
