V= 4/3 π R^3
17 x 17 x 17 = 4913 x 4 = 19652 / 3 = 6550.66667
or 6550.7
6550.7 x 3.14 = <span>20569.198
V = 20569.2</span>
342 = a²
switch sides:
for x² = f(a) the solutions are x = √ f(a) and - √ f(a)
therefore:
√ 342 = 18
-√ 342 = - 18
a = 18 and a = - 18
hope this helps!
Answer:
It takes them approximately 27 minutes to mow the lawn if they are working together.
Step-by-step explanation:
Wilma can mow a lawn in 80 minutes. This means she can mow at the rate of 1 lawn in 80 minutes. We can write this rate as R = 1/80
Melissa can mow the same lawn in 40 minutes. This means she can mow at the rate of 1 lawn in 40 minutes. We write the rate as R = 1/40.
Now, if the are working together, we need to determine how long it would take for them to mow a lawn. Let this rate be 1/x.
What we want to find is
1/80 + 1/40 = 1/x
Multiply through by 80, we have
1 + 2 = 80/x
3 = 80/x
Take reciprocals of both sides
x/80 = 1/3
x = 80/3
= 1600 seconds
Approximately 27 minutes
I'm assuming you wrote it wrong
prolly you wanted to write:
i^0 * i^1 * i^2 * i^3 * i^4
1 * i * (-1) * (-i) * 1
i * (-1) * (-i)
i * i
-1
Answer:
1/3
Step-by-step explanation:
2/5+2/5-7/15
=2+2/5 -7/15
=4/5-7/15
=4×3-7/15
=12-7/15
=5/15
=1/3 Ans.