Answer:
B. 60
Step-by-step explanation:
30 is 1/2 of 60
Answer:
V=(4/3)πr^3
Step-by-step explanation:
This is the equation to find the volume of a sphere
V=(4/3)πr^3
than plug in 6 for x, and solve
<span>cos 2x + sqrt(2) sinx=1
</span><span>
Note that: cos 2x = cos^2x - sin^2x = (1-sin^2x) - sin^2x = 1 - 2sin^2x.
So, when alternatively written, you have the following equation:
</span>- 2sin^2x + sqrt(2)sinx + 1 = 1
- 2sin^2x + sqrt(2)sinx = 0
Then, let z=sin(x). So you get,
- 2z^2 + sqrt(2)z = 0
z(- 2z + sqrt(2)) = 0
Either z=0, or - 2z + sqrt(2) = 0 ---> z=sqrt(2)/2.
Then, since z=0 or z=sqrt(2)/2, therefore sin(x)=0, or sin(x)=sqrt(2)/2.
Then, for you remains just to list the angles. (Let me know if this is not fair or if you got questions.)
First, find the mean. You'll need it to compute the variance.
The variance of the sample is then computed with the formula
The standard deviation is the square root of the variance, so
Answer:
4m²-24mn+9n²
Step-by-step explanation:
- Separate equation out so it is (4m-3n)×(4m-3n)
- FOIL (First, Outside, Inside, Last) your polynomial
- Should have equation 4m²-12mn-12mn+9m²
- Combine like terms
- Result: 4m²-24mn+9m²
