The expression 4x^2 represents - (4)(x)(x)
Answer:
100 miles
Step-by-step explanation:
Relative Speed: 60+40=100 mph
you can think that one train is stationary,another one is 100 mph
so one hour before the train pass each other，the distance is 100 miles
Answer:
0.4 would represent the strongest correlation.
Step-by-step explanation:
Generally, a value of r greater than 0.7 is considered a strong correlation. Anything between 0.5 and 0.7 is a moderate correlation, and anything less than 0.4 is considered a weak or no correlation
First of all, lets get y on its own side of the equation.
This is slope intercept form, y=mx+b, where m is slope.
we can see that m=2, so the slope is 2 or 
For this case we have that by definition, it is called arcsine (arcsin) from a number to the angle that has that number as its sine.
We must find the 
. Then, we look for the angle whose sine is 
.
We have to, by definition:
So, we have to:
Answer:
Option B
