If the line is parallel to y=-x+4, the line must have the same slope.
So, the slope of your line is -1.
Now we need to find the y intercept. We should use the point given.
y=mx+b
0=-1(5)+b
b=5
Equation: y=-x+5
DA SAWCE BOAWSS DIOES THE DIRTY DEEDS ON HIS ONWN
a.

Looking up 1.4 in the standard normal table,

Answer: 8.1%
b.
The standard deviation of the average is the standard deviation of an individual sample divided by the square root of n.


Answer: 76.7%
c.
We know the data is normal so so is its sum and average. The standard deviation of the individual observations is given so the standard deviation of an average of n is easily calculated. We use t tests when we're estimating the standard deviation from the data.
Answer:
1) 28.5ft Squared
Step-by-step explanation:
1/2*b*h
10 *5.7 = 57
1/2 of 57 = 28.5