Are the diagnols of the parallelogram perpendicular? why or why not?

A box is filled with 12 brown cards, 5yellow cards, and 3 green cards. A card is chosen at random from the box. What is the probability that it is a brown or a green card

What is the value of x in the equation 3x-4y=65, when y=4? WN

One integer is 3 less than another. The sum of their square is 317. Find the integers

A professor must randomly select 4 students to participate in a mock debate. There are 15 students in his class. In how many different ways can these students be selected, if the order of selection does not matter?

Complete the equivalent equation for - 7x-60 = x2+10

You estimate that a tree is 45 ft tall. It is actually 58 ft tall.

A satellite television provides charges 39.95 per month for service. on demand movies can be rented for 3.99 each. broadcasts of special events can be rented for 49.95 each.

In a department store he finds a square rug that has an area of 9 m2. How many of those rugs are needed to cover an area of 36 square meters?

Using complete sentences only, describe how to find the volume of a cone.

If y varies directly with x, and y = 7 when x = 6, what is the constant of variation?