Answer:
Step-by-step explanation:
Let the first term is a and common difference is d.
<u>The nth term is:</u>
<u>We have:</u>
<u>The difference of these terms is:</u>
- (a + 8d) - (a + 5d) = 16 - 15
- 3d = 1
- d = 1/3
<u>Then the first term is:</u>
- a + 5*1/3 = 15
- a = 15 - 5/3 = 13 1/3
<u>The nth term equation is:</u>
- aₙ = 13 1/3 + 1/3(n - 1) = 1/3n + 13
<u>If the nth term is 22, find n:</u>
- 1/3n + 13 = 22
- 1/3n = 22 - 13
- 1/3n = 9
- n = 9*3
- n = 27
The answer is D.
Hope I helped
Answer:
−
4
k3−
k
2−
6
k+7
Step-by-step explanation:
I just simplified the expression.
Answer:
n = -2
Step-by-step explanation:
6n = 2n-8
4n = -8
n = -2
Answer:
Y
Step-by-step explanation:
Think of it as flipping the figure over the x axis. (If you look at the points of the outline of the graph the y values will change signs. (x,y)⇒ (x,-y) )
The correct graph is Y
