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

A. unproven theorems

B. postulates

C. definitions

D. already-proven theorems

What's the area of the regular 15-gon with radius 6 mm?

Il padre di Robert è 4 volte più vecchio di Robert. Dopo 5 anni, il padre avrà tre volte più di Robert. Trova le loro età attuali.

Jason is keeping track of the amount of money that he spends on gas each month. Below are the amounts for last month: $24.75 $30.25 $34.60 $38.

Explain what makes two quantities proportional

Integrate 1 / ((x^5) * sqrt (9*x^2-1)) ... ?

What is much is trentons sponsors and what's the equation

Will give brainliest! For a polynomial p (x), the value of p (3) is - 2. Which of the following must be true about p (x) ? A) x-5 is a factor of p (x). B) x-2 is a factor of p (x). C) x+2 is a factor of p (x).

Name a real life a example of using negative numbers

What is 829.046 in word form?

Consider a sequence whose first five terms are 19, 13, 7, 1, and - 5. Select the function (with domain of all integers n ≥ 1) that can be used to define and continue this sequence.