Use the points to find the equations of both your lines.
By using the formula for finding slope where: m = (y2-y1) / (x2-x1)
Your first equation is y = -2x+4
Your second equation is y = -2x+7
Normally you want to set these equal to each other and see where they are equal... however, as you can clearly see, these two equations are parallel. Parallel equations don't intersect, which would mean your answer is A, no solutions.
Answer:
Step-by-step explanation:
I think you mean 1/2 for 12. I will assume so
40 = (1/2) m v^2 Multiply both sides by 2
40*2 = (1/2)*2 *m * v^2 Combine the 2s cancel.
80 = m * v^2 Divide by v^2
80/v^2 = m * v^2/v^2 Cancel
80/v^2 = m
Since I don't have the drop down menus, you'll have do the matching.
answer: 20
in the number line, you can see that the dot on 20 is an open circle. this means that it is not included. so 20 could be one of the answers.
- anything greater than 20 would be an answer.
Speeds
cutwrigth =35/84 =5/12 laps/min =0.417
evans =42/96.6=10/23 laps/min =0.435
loza =38/102.6 =10/27 laps/min =0.370
evans drove fastest
Answer: B
. on your test
Step-by-step explanation:
