1. 3 divided by 1 and 1/3 2. 6 divided by 2 and 2/5 3. 1 and 3/4 divided by 3/4 4. 2 divided by 4 and 2/7 5. 7 divided by 3 and 1/9 6. 6 and 2/3 divided by 4/5 7. 1 and 1/9 divided by 5/6

1. 2.25

2. 2.5

3. 2.3

4. 0.46

5.  2.25

6. 8.3

7. 1.33

Step-by-step explanation:

that sholnd be right

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

step-by-step explanation: