Let R be the relation on N x N defined by (a, b) R (c, d) if and only if ad bc. Show that R Equivalence Relations. is an equivalence relation on N x N.

Write and expression that equals 40. Include an exponent

Y=300-5x in standard form

If f (x) is decreasing for all x then

The volume, v, of a certain gas varies inversely with the amount of pressure, p, placed on it. The volume of this gas is 175cm3 when 3.2cm2 of pressure is placed on it. What amount of pressure must be placed on 400cm3 of this gas?

A plumber has a piece of pipe that is 5-meter long. He needs to cut it into sections that are 10 centimeters long. How many sections will he be able to cut? Complete the explanation about how you found your answer. It can be cut into sections.

Find the zero of the polynomial 2x²+9x+4

M over 4 = - 13 what does m = ? ... ?

Mr. Delaney broke his piggy bank

What is a40 for the arithmetic sequence presented in the table below? n 8 12 an 60 48 Hint: an = a1 + d (n - 1), where a1 is the first term and d is the common difference

Chris was shown the graph of a line that contained (1,7). He wrote f (x) = 4x + 3 to correctly represent the line. Which of these equations could represent the same line.