Answer:
5
Step-by-step explanation:
Subtract 4 from both sides of the equation. It looks familiar now right? (y=mx+b is a linear equation)
8^2 is 64 and 2^2 is 4. When you add them together you get 68.
(8+2)^2 is the same as 10^2 which is 100.
68≠100
Answer:
To find a
sin 30=a/6in
1/2=a/6in
2a=6in
a=6in/2
a=3in
To find b
cos 30=b/6in
/3/2=b/6in
2b=/3*6in
b=2/3(two radical three)
I don't get the radical sign so I use / sign on the last 3 steps on the second
A.

Since about 95% of a normal distribution falls within two standard deviations of the mean, that leaves 5% that lie without, with 2.5% lying to either side.

b.

About 68% of a normal distribution lies within one standard deviation of the mean, so this probability is about 0.68.
c. You're looking for

such that

Since

occurs for

, it follows that

So there's a probability of 0.10 for having a demand exceeding about 1328 pounds.