Answer:
<u>x = -7.5 - 1.5(n−1) </u>
Step-by-step explanation:
the explicit formula for the arithmetic sequence has the form
x = a + d(n−1)
a is the first term and d is the common difference
The given arithmetic sequence is
-7.5,-9,-10.5,-12
The first term is -7.5
d = common difference = -9 - (-7.5) = -1.5
∴ x = -7.5 - 1.5(n−1)
Answer:
the correct answers are 22 and 8
Answer:
7
Step-by-step explanation:
10.5*2/3= 3.5*2=7
Answer:
19.135
Step-by-step explanation:
Triangle = 1/2 b h
1/2 x 8.9 x 4.3 = 19.135
