Answer:
a=b-2
Step-by-step explanation:
So first, we're gonna split these into their own little sections.
If Duncan drove 30 mph for 20 minutes, we need to think about the time for now. One hour is 60 minutes, and 20 minutes is 1/3 of an hour. If it's 30 miles per hour, then we'd need to split that into thirds to give it the twenty minute value, so in twenty minutes he drove 10 miles.
For the second part, we're gonna do the same thing. 40 mph in twelve minutes. 60 divided by 12 is 5. Then split the 40 mph into fifths. 40 / 5 = 8. Every twelve minutes, he drove 8 miles.
Add 10 and 8, and he drove a total of 18 miles to get home.
Answer:
Step-by-step explanation:
<u>Given line:</u>
Perpendicular lines have negative-reciprocal slopes.
<u>We will have a line:</u>
<u>Use the coordinates of the given point to find the value of b:</u>
- -1 = -3(5) + b
- -1 = - 15 + b
- b = 14
<u>So the line is:</u>
Answer:
You have vertical asymptotes on x=-4,-2
Step-by-step explanation:
This question is very simple. Since you have a denominator all you need to do is factor the bottom and find the zeros. When you factor the bottom of the equation you should get (x+4)(x+2). Now you have to set the bottom equal to zero to find the zeros. This means (x+4)=0 and (x+2)=0 So you get two answers x=-4 and x=-2 Therefore your two vertical asymptotes are on x-4,-2
Cancel by elimination
4x+y=2
x-y=3
5x=5 because the Ys cancel out because it is positive and negative
x=1 when you divide by 5 on both sides to find x
then plug 1 in for x in a equation then solve
4(1)+y=2
4+y=2
y=-2 when you subtract 4 on both sides
(1,-2)