A 1 =7 and a_n=a_{n-1}+4a n =a n−1 +4
1 answer:
You might be interested in
Answer:
B. -1
Step-by-step explanation:
If we have a parabola whose equation is:
The line of symmetry is calculated as:
Now, we have the equation and the line of symmetry is
Where:
So, we can replace by -4 and
by -2 and solve for
using the following equation as:
It means that the equation of the parabola is equal to:
Answer:
Therefore, Kevin spent $56.
Step-by-step explanation:
We know that the Kevin bought 2 pairs of jeans that were originally $40 per pair but were each marked down by $15 and 3 t-shirts for $12 each. He also used a coupon for $10 off his entire purchase.
Therefore, we have 2 pairs of jeans for $15 and 3 t-shirts for $12 each and a coupon for $10 off his entire purchase.
We calculate the total amount he spent.
Therefore, Kevin spent $56.