A person plans to inest three times as much in an a.) Artisan International fund at 10% annual interest as in a b.) SEI Large Cap Index fund at 16% annual interest. How much will the person have to invest in each fund to earn a total of $1840 in one year?

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

correct answer:

b.(19,-2)

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