Answer:
One of the expressions that are equivalent to 4d+6+2d is 6d+6
When n = 1 first term = -6
n = 2 second term = 0
n = 3 third term = 6
n = 4 4th term = 12
so we have an Arithmetic sequence first term = -6 and common difference = 6
Sum 14 terms = (14/2)[2*-6 + (14-1)*6]
= 462 answer
Answer:
8 hours and 8 minutes
Step-by-step explanation:
there are 24 hours on the clock so if you add 6 to the 24 it would make you be at 0:00 so then you would add 2 hours and since 28 is 8 more than 20 it would be 8 hours and 8 minutes.
There could have been one Grandma(One mom), one Mom(Another mom, and a daughter), and one Daughter(another daughter).
Perimeter of this triangle
= (8 + 9 + 13) units
= 30 units