An = a1 + (n-1)*d
n = term to find = 30
a1 = first term = 20
d = common difference = 2
a30 = 20 + (30 - 1) * 2
a30 = 20 + 29 * 2
a30 = 20 + 58
a30 = 78
sn = (n (a1 + a30)) / 2
s30 = (30(20 + 78) / 2
s30 = (30(98) / 2
s30 = 2940/2
s30 = 1470 <===
Answer:
there will be 20 dollars
Step-by-step explanation:
500 multiplied by .12 and then timesed by 8 then subtracted by 500
Answer:
28.8 km/h
Step-by-step explanation:
I used the calculator, but I don't know any formulas for changing m/s km/h.
But I hope this helps!
9514 1404 393
Answer:
(f -h)(2) = 3
Step-by-step explanation:
(f -h)(2) = f(2) -h(2) = (2^2 -4) -(2 -5) = 0 -(-3)
(f -h)(2) = 3
