Helena stopped at Checkpoint C, which has coordinates (−4,5). She gets to Checkpoint D at (−3,2) by crawling underneath barbed wire. She will have to crawl underneath barbed wire between the next two checkpoints (E and F) as well. What are the coordinates of Checkpoints E and F if EF is located at CDs location in a 180∘ rotation of the course?

Select two answers: one for Checkpoint E and one for Checkpoint F.

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

the equation is not included but the answer is (1.50, 2.00, 2.75)

step-by-step explanation:

the answer is

d.

5.3066 m2

step-by-step explanation:

the answer is d.x= 90°

y= 50°

arc lm= 100°

i got this one chief