Answer:
56
Step-by-step explanation:
2(5^2)+(2)(3)
=(2)(25)+(2)(3)
=50+(2)(3)
=50+6
=56
Answer:
B 60
Step-by-step explanation:
161
7*18 + 5*7
126 + 35 =
161
In order to solve for a nth term in an arithmetic sequence, we use the formula written as:
an = a1 + (n-1)d
where an is the nth term, a1 is the first value in the sequence, n is the term position and d is the common difference.
First, we need to calculate for d from the given values above.
<span>a1 = 38 and a17 = -74
</span>
an = a1 + (n-1)d
-74 = 38 + (17-1)d
d = -7
The 27th term is calculated as follows:
a27 = a1 + (n-1)d
a27= 38 + (27-1)(-7)
a27 = -144 -----------> OPTION D
The standard form:
The point-slope form:
We have the slope m = 3 and the point (5, 5). Substitute:
<em>use distributive property</em>
<em>add 5 to both sides</em>
<em>subtract 3x from both sides</em>
<em>change the signs</em>