Answer:
4
Step-by-step explanation:
use the x's and y's in this...
y-y over x-x
to get answer.
Answer:
9.4
Step-by-step explanation:
Value of x is 9
As when we multiply a + 3 by -2a2 + 15a + 6
We get
(a + 3) (-2a2 + 15a + 6)
-2a3 + 15a2 + 6a - 6a2 + 45a + 18
-2a3 + 9a2 + 51a + 18
If we compare the coefficients of a2, we get
x = 9
A. 25.2 because it is the only answer outside of the previous range of 25.6 - 29.1.
Answer: -9n+20
This is the same as 20-9n
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Explanation:
The jump from 11 to 2 is "minus 9"
The jump from 2 to -7 is also "minus 9".
Assuming this pattern continues on, we have an arithmetic sequence with
- a = 11 = first term
- d = -9 = common difference
The nth term can be found like so

Let's check the answer by trying n = 3

This shows the third term is -7, which matches what the original sequence shows. The answer is partially confirmed. I'll let you check the other values of n. You should get 11 when trying n = 1, and you should get 2 when trying n = 2.