In ΔABC, AB = 20 cm, AC = 15 cm. The length of the altitude AN is 12 cm. Prove that ΔABC is a right triangle.

The probability of rolling factors of 6 on both dice

Three friends spilt the cost of a pizza and a salad the pizza cost 15$ and the salad cost $6 what is the expression

what is the largest whole number that can round up or down to 500 if we where rounding to the nearest hundred

What is 16,500 rounded to the nearest ten thousand feet

Erin is 8 years younger than twice Paula's age. The sum of their ages is 40. How old is Erin

100 students are boarding the hogwarts express! they all have allocated seats but the 1st wizard to board sits in the wrong seat. each student then gets onto the train and takes their allocated seat if it's available.

Evaluate (z^2) ^4/5z^5 when z=5 and simplify

David has two cylinder shaped bottles of punch, each with a height of 12 inches and a radius of 2 inches. He wants to fill a half-sphere punch bowl to the brim with the punch.

Sam goes to lunch with Sara and keith. Each person orders $6 lunch special. Sam agrees to pay the bill. How much does he have?

Multiply the polynomials (x + 4) (x + 4)