Alba is Saving for a big overseas trip she hopes to take her senior year in college , which is four years away . She plans to deposit 10,000 at the end of each quarter in an account earning 8% annual interest , compounded quarterly . How much money will alba have for trip after 20 years ?

FV= $1,937,719.58

Step-by-step explanation:

Giving the following information:

Quarter deposit= $10,000

Number of periods= 20*4= 80

Interest rate? 0.08/4= 0.02

To calculate the future value, we need to use the following formula:

FV= {A*[(1+i)^n-1]}/i

A= quarter deposit

FV= {10,000*[(1.02^80) - 1]} / 0.02

FV= $1,937,719.58

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

i'm sorry i don't know

step-by-step explanation: