Answer:
Step-by-step explanation:
- With the equation's current format, we will have trouble solving with all these fractions. Especially the fraction
is very difficult to deal with, so my first step would be:
- If we multiply both sides by this number, we will be able to get rid of the messy fraction on the right side as well as remove the fraction on the left side. Like so:
- <em>I put the
I multiplied onto each side in fraction form simply for clarity. You do not need to do this.</em>
- After this point, let's put our variable,
, onto one side of this equation and any other integers on the other by adding and subtracting them from both sides.
- Now we divide so that is isolated, and we are done.
Answer:
The surface area is divided by 4.
Step-by-step explanation:
Surface area of a sphere is 4πr².
When the diameter is 28 the radius is 14. So: 4π(14)² = 784π
If you cut the diameter in half you get 14. The radius is now 7.
4π(7)² = 196π.
784/4 = 196 so divided by 4.
Answer:
1.50 I think
Step-by-step explanation:
51.50-50 equals 1.50
Answer: A union B = B
The first one should’ve said A intersects B = A because the entirety of A exists in B
Answer:
Yes we can conclude.
Step-by-step explanation:
The sampling distribution of 
can be approximated as a Normal Distribution only if:
np and nq are both equal to or greater than 10. i.e.
Both of these conditions must be met in order to approximate the sampling distribution of as Normal Distribution.
From the given data:
n = 50
p = 0.80
q = 1 - p = 1 - 0.80 = 0.20
np = 50(0.80) = 40
nq = 50(0.20) = 10
This means the conditions that np and nq must be equal to or greater than 10 is being satisfied. So, we can conclude that the sampling distribution of pˆ is approximately a normal distribution
