Which pair of equations represents perpendicular lines?

a x+2y=8 : 2x-y=-8

b x+2y=8 : 2x+y=8

c x+2y=8 : - x-2y=8

d x+2y=8 : -x-2y=-8

Emily arrives at school at 8:35am together reading and math last 1 hour and 35 minutes. Then Emily goes to band practice for 45 minutes. What time does band practice end?

What's the difference between multiples and factors and how do I remember the difference?

Round 6.94729776259 to 5 decimal places.

What fraction / 12 the same as 32

Each column of the matrix a = (1,6,6,1,1,1,5,5) represents a vertex of a rectangle on the coordinate plane.

If ƒ (x) = x^2 + 1, find ƒ (a + 1). a^2 + 2 a^2+a+1 a^2+2a+2

Jvg Corp is currently selling stock at $32.50 per share with a $0.80 dividend. if you purchase 200 shares at the current price, what rate of return will you expect as a return on your investment?

In a literary work, what is irony? A. An explanation of an event that took place before the story begins B. An element in a story that evokes pity or compassion for the characters C. The underlying reason a tragic hero causes a tragedy to happen D.

1. Solve this nonlinear system of equations show your work. Y=-x^2+6x-5 Y=3 a. Use substitution to combine equations. Rewrite so that one side is equal to 0. b. Factor your equation from part a. c. Identify the x-values of the solutions. D.

Test 85743 for divisibility by 2,3,5,9 and 10