The volume of a sphere is 4/3πr³. Fill in 0.25 for r and you get <span>0.0654498...
That maps to the second answer.</span>
(2.2x10^-1)=22x10^-2
(22x10^-2)+(2.3x10^-2) = 24.3x10^-2
=2.43x10^-1
Therefore, the answer is D
Answer:
48 minutes
Step-by-step explanation:



It will take 48 more minutes to finish raking the backyard.
C is not a linear function
Answer:
i
(or no solution if you haven't learned about imaginary numbers yet)
Step-by-step explanation:
The first thing you want to do is isolate x, or get x alone.
7x²+46=32
=> 7x²+46-46=32-46
=>7x²=-14
=>7x²÷7=-14÷7
=>x²=-2
If you have learned about imaginary numbers read on. If not, you have to realize that squaring any number can't result in a negative number. This means that there is no solution.
If you have learned about imaginary numbers, read on.
Now that you have x^2=-2, you can take the square root of both sides.
x=
Using a property about square roots (I don't know what it's called)
the equation becomes:
x=
And since
=i, you can substitute in this value in to get x=i
.