The following graph shows the time required to braid a necklace based on its length 401
36-
32
28
24
Length of necklace (centimeters)
20-
16
12-
8
41
0.5
1
2,5
3
1.5 2
Time (hours)
Which statements about the graph are true?

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

5/20 so 25%

step-by-step explanation:

c. 1,233 miles