Answer:
an = an-1 *7
a1 = -3
Step-by-step explanation:
We are multiplying by 7 each time
-3*7 = -21
-21 *7 = -147
The formula for a geometric sequence is
an = a1 * (r)^(n-1) where r is the common ratio and n is the term number
an = -3 ( 7) ^(n-1)
The recursive formula is
an = an-1 * r
an = an-1 *7
a1 = -3
<span>2c + 4d = 2*30 + 4*8 = 60 + 32 = 92
</span><span>D) 92</span>
U can use the cosine or sine rules depending on the question/triangle
Answer:
no solutions
Step-by-step explanation:
4x + 5 = 9 + 4x
Subtract 4x from each side
4x-4x + 5 = 9 + 4x-4x
5 = 9
This is not a true statement so there are no solutions
Answer:
b, d and e
Step-by-step explanation:
Only even numbers are divisible by 2
The only even numbers in the list are
b 70
d 2380
e 6678