Two planes α and β are intersecting, the angle between them being 45 °. Consider a square ABCD with a side of 4 cm in the α plane, where AB is a segment of the intersection of the α and β and 'D'C planes the orthogonal projection of CD on β. a) Draw a picture illustrating the problem.
b) Determine the perimeter and area of the ABC'D 'quadrilateral.

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer

ab: 2 n83b8eb7ebi. 8e yen in

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

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