Dancing pools sells swimming pools in 4 sizes. the small pool is 36 feet long and 9 feet wide. the medium pool is 40 feet long and 10 feet wide. the large pool is 44 by 11. if the new superduper coffeetable pool is 48 feet long, how wide will it be?

It would be 12 feet wide.

Step-by-step explanation:

Dancing pools sells swimming pools in 4 sizes.

All the poos have lengths that is 4 times long of their width.

The small pool is 36 feet long and 9 feet wide = 9 × 4 = 36

The medium pool is 40 feet long and 10 feet wide = 10 × 4 = 40

The Large pool is 44 feet long and 11 feet wide = 11 × 4 = 44

As we can see all the pool has 4 times longer length from it's width.

If the new super duper coffee table pool is 48 feet long, it's width would be 1/4 of its length. = 48 × = 12 feet

It would be 12 feet wide.

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

a - base

b - exponent

so,