If this helps you have to use the formula (x1,y1) and (x2,y2). So for number 1 it would be 7x - 3x and 2y - 4y
Answer:
c > 25
Step-by-step explanation:
B² - 4AC < 0
(-10)² - 4(1)(c) < 0
4c > 100
c > 25
Answer:
ab(28) or 28ab
Step-by-step explanation:
13ab + 15ab = 28ab
I came up with 1.3 hours.. Not sure if that's right but it would make sense. How did you figure it?
Answer:
log 21 - log 6 = log 7/2
5 5 5
Step-by-step explanation:
The formula for the log of a quotient a/b is log a - log b.
Thus, log 21 - log 6 = log 21/6, or log 7/2
In your case the logs are to the base 5, so the actual answer would be:
log 21 - log 6 = log 7/2
5 5 5
