Answer:
B. an=100 + (n-1)5
Step-by-step explanation:
Using the explicit formula
an = a1+ d(n-1)
we know a1 is 100, which is the staring amount
We know d is the amount added each time or the common difference which is 5
an = 100 + 5(n-1)
If we want to find a specific day, we can substitute in for n
Answer:
It's 20
Step-by-step explanation:
-.-
Answer:
a=3, c=4. (3, 4).
Step-by-step explanation:
2a-3c=-6
a+2c=11
-----------------
a=11-2c
2(11-2c)-3c=-6
22-4c-3c=-6
22-7c=-6
7c=22-(-6)
7c=22+6
7c=28
c=28/7
c=4
a+2(4)=11
a+8=11
a=11-8
a=3
Answer:
1-2-3-4-5
Step-by-step explanation:
sin(X/2)=1-cos(x)
2