How can you tell if a lines is perpendicular based on their slope?

Jill is inviting friends for a party, She doesn't know any of their birthdays. What is the least number of friends that she needs to invite in order to guarantee that at least a of the friends will I have a birthday in the same month?

A number is increased by 3.5, and the result is - 4.3. Find the number. - 7.8 - 1.2 - 7.4 - 7.1

After starting with a non-right triangle, you had to construct the

A pastry chef has a container with 1/4 pound of sprinkles. The chef needs to spread the sprinkles equally among 5 cakes. What fraction of the sprinkles will the chef use on each cake? Which two equations can you use to solve the problem?

What is 4 ten thousands for thousands x 10

The variable x represents a value in the set f4; 6; 7; 8g. Which value of x makes 2 (x-4) + 3 = 7 a true statement?

What is 4 plus negative 2 and 1 third

The transformation: (x, y) → (x+5,7 Reflection Translation Dilation Rotation

How does doubling the measure of each dimension in a rectangular prism change the volume of the prism

How many solutions does the equation sin (5x) = 1/2 have over the interval 0,2pi