Which types of reasons are not valid in a mathematical proof?

A. unproven theorems

B. postulates

C. definitions

D. already-proven theorems

Convert 3 tsp into mL.

The length of a rectangle is 4 times than its width. the area of the rectangle is 1024cm2 find the length of the rectangle the perimeter of the rectangle 4 square has the same perimeter as that its rectangle. Find the area of the square.

Lily saw a jellyfish at 6 feet below sea level she she saw a bluefish 10 feet below sea level what is the distance between the Bluefish and the jellyfish

Negative 18=r-3 What r and how did you get it

On a scale model of a building, 14 inch represents 38 foot. What length on the model represents 1 foot?

Alan Lewis purchased a new computer for is office using the store's installment credit plan. The computer cost $5,991.64. What amount did he finance if he made a 40 percent down payment?

Assume two radar stations which are 39 miles apart are both tracking a plane. At a given moment, the angle between station 1 and the plane is 59.83°, while the angle between station 2 and the plane is 55.54°.

A roster for a baseball team has 12 players. the coach is randomly making the batting order for 9 players. what is the probability that you will be the lead-off hitter

What do cannibles do to their relitives

What 2 numbers add up to 17 and multiply to get - 84?