write the following integers in ascending order (smallest to biggest).1._5,2,1,_8 2. _4,_3,_5,2 3._10,_15,-7​

1. -8 , -5 , 1 , 2

2: -5, -4 , -3 , 2

3: -15, -10, -7

Step-by-step explanation:

Given

1. -5, 2, 1, -8

2. -4, -3, -5, 2

3. -10, -15,-7​

Required

Sort in ascending order

To write in ascending order, means that the number must increase from left to right.

So, we have:

1. -5, 2, 1, -8

From left to right, we have:

Hence, the sorted list: -8 , -5 , 1 , 2

2. -4, -3, -5, 2

From left to right, we have:

Hence, the sorted list: -5, -4 , -3 , 2

3. -10, -15,-7​

From left to right, we have:

Hence, the sorted list: -15, -10, -7

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