Sebuah limas memiliki alas berbentuk persegi. Jika tinggi limas 12 cm dan tinggi sisi tegak 15 cm, tentukan luas alas limas

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.