you have to apply this formula (a+b)(c-d)=ac-ad+bc-bd
-6a^3*b*5a^2+6a^3b*2ab+6a^3b*b+2ab^2*5a^2-2ab^2*2ab-2ab^2*b=
-30a^5*b+12a^4b^2+6a^3b^2+10a^3b^2-4a^2b^3-2ab^3
This should be pretty self explanatory. "miles per hour" is how many miles you can drive in 60 minutes. So, it would take....an hour to reach 80 miles. You're going 80 miles per hour.
The slope = y value / corresponding x value
use the point (3,15)
slope = 15 / 3 = 5
<span> 18 + 6n ≥ 42, so n ≥ 4 is the answer I believe.
I hope Im not too late.
I hope this helps :)</span>
Answer:
I'm pretty sure the answer is B
Step-by-step explanation:
