If two lines are perpendicular, then they form four angles that are each 90 degrees.

true or false?

The common ratio is 2 1,-2,4,-8, ... True False

How can I calculate a certain decimal given a length? Let's say n is a decimal, and I want that decimal to be a length of 3. The output needs to be. 001. If n's length was 2, it would be. 01, etc.

Calculate the area of a circle with the radius of 2cm (1dp)

Think of a number, any number Add 3. Double that Subtract 4. Cut that in half. Subtract your original number, Explain why the answer is always 1, regardless of the number you began with.

If she takes the stairs how many flights of stairs will she have to climb

Michelle lives with 2 brothers, 3 sisters, her mother, and her father. including Mitchell, 3/4 of her family likes to go swimming. How many people like to go swimming in Michelle's family?

Ten friends share 6 pizzas equally. What fraction of a pizza does each friend get?

If the average of the numbers 3, 4, x, y, and 2 is 4, what is the value of x+y?

Molly bought a case of bottled water at the store. The case contains 48 bottles. Molly knows that she will drink 3 bottles of water each day and plans to restock her supply of water once she has fewer than 10 bottles left.

A worker draws a 1/5 scale drawing of the top of a small air conditioning unit. The drawing is a small air conditioning unit. The drawing is a rectangle with a length of 4 inches and a width of 2 inches.