Answer:
y = x -7
Step-by-step explanation:
2x - 2y = 14
The slope intercept form is
y = mx+b where m is the slope and b is the y intercept
Subtract 2x from each side
2x - 2y -2x = -2x+14
-2y = -2x+14
Divide each side by -2
-2y/-2 = -2x/-2 +14/-2
y = x -7
The slope is 1 and the y intercept is -7
The formula for the light bend would be n1*sin i= n2 * sin r
If you use "sin (90-x)= cos x" principle, you can change the sin in the equation into
n1*sin i= n2 * sin r
n1 * cos a= n2 * cos b
n2/n1= cos a/ cos b
Assuming the n constant is the ratio of the glass compared to water then the answer would be: cos a/ cos b
Answer:
15 miles per hour
Step-by-step explanation:
First, lets find the number of miles he goes in 1 minutes.
That would be found by dividing the number of miles (12) by the number of minutes (48), so we have:
12/48 = 0.25 miles per minute
We want the speed in miles PER HOUR.
So, how many minutes are in an hour??
That is 60 mins = 1 hr
So, we need to multiply this by 60.So,
0.25 miles per minute * 60 minutes (1 hr) = 15 miles per hour
Additive inverse; you can't just take -4.4 and make it positive.
