Substitute the values of x and y into the expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2. match that value to one of the numbers.

1. x = 2, y = -1
9.17

2. x = 0, y = 2.5
-11.25

3. x = -1, y = -3
14

4. x = 0.5, y =
0.44

5. x = , y =
1.665

6. x = √2, y = √2
-1

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500