Answer:
f(x)=7x+11
Step-by-step explanation:
15-4-7x= 7x+11. Sp y or f(x)= 7x+11
Answer:
(1, 5), (3, 19) (-1, -9)
Step-by-step explanation:
really need the choices
Answer:
see explanation
Step-by-step explanation:
The common difference d of an arithmetic sequence is
d =
-
=
- 
Substitute in values and solve for k, that is
5k - 1 - 2k = 6k + 2 - (5k - 1)
3k - 1 = 6k + 2 - 5k + 1
3k - 1 = k + 3 ( subtract k from both sides )
2k - 1 = 3 ( add 1 to both sides )
2k = 4 ⇒ k = 2
--------------------------------------------------------
The n th term of an arithmetic sequence is
=
+ (n - 1)d
= 2k = 2 × 2 = 4 and
d = 5k - 1 - 2k = 3k - 1 = (3 × 2) - 1 = 5
Hence
= 4 + (7 × 5) = 4 + 35 = 39
Answer:
x meters= 35
5x meters= 175
6x - 8 = 202
Step-by-step explanation:
x + 5x + (6x - 8)= 412
12x - 8= 412
12x = 412 + 8
12x = 420
x= 35
5x = 35× 5
= 175
6x - 8= 6(35) - 8
= 210 - 8
= 202