Question

If you save one penny on January 1, two pennies on January 2, three pennies on January 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars, at the end of that one year? Express your answer as a decimal.
667.95
543.09
768.97
537.09

Answer 1

i said before
\[\sum_{1}^i = [n*(n+1)]/2\]
so use this fore the month s and solve it
n is number of the days
ex 30 0r 29 0r...

Answer 2

667.95

Answer 3

Correct!

Answer 4

did u solved?

Answer 5

can you help me with my last question im having trouble on?

Answer 6

Assume f(x) = 2x + 8 and g(x) = 5. What is the value of (f + g)(3)?

Answer 7

ok

it means f(x) + g(x)

so f(3)= 2(3) +8
and g(x) always have a constant value
so
f(3)=14
g(3)=5
14+5=19

Answer 8

thanks your awesome

Answer 9

you r welcome