Answer:
The nth term formula is as follows:
where the first phrase is a
n is the term's number.
The common difference is denoted by the letter d.
Step-by-step explanation:
i believe this is the answer n(2)-7<span />
Answer:
Step-by-step explanation:
Unless we set x^2 + 8x + 15 equal to zero, we don't have an equation to be solved. I will assume that the problem is actually x^2 + 8x + 15 = 0.
The coefficients of this quadratic are {1, 8, 15}, and so the "discriminant" b^2 - 4ac is (8)^2 - 4(1)(15), or 4. Because the discriminant is positive, we know that there are two real, unequal roots.
Continuing with the quadratic formula and knowing that the discriminant is 4, we get:
-8 ± √4 -8 ± 2
x = ---------------- = --------------- , or x = -2 ± 1: x = -3 and x = -5
2 2
$8.40 is the amount to be subtracted from the $42.00. If you multiply
20% (.20) by $42.00 you get $8.40. To get your final price subtract
$8.40 from $42.00 to get you final answer. I hope that helps.
Answer:
2
Step-by-step explanation:
I could be wrong but I think it's 2
