10. Identify the lines that are perpendicular. y = 4; y=-3x-4;x = -6;y + 5 = 2(x + 2)

a. X-4 and y + 5 = 2(x + 2) are
perpendicular.

b. y = 4 and x = -6 are perpendicular;
- 4 and y + 5 = 2(x + 2) are
perpendicular.

c. none of these lines are perpendicular

d. y = 4 and x = -6 are perpendicular.
y = -1/2 x

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

160 cm

step-by-step explanation:

you have to add all the sides together

30,40,50 is correct answer