Which of the following are the factors of t4 - 81? A. (t - 3) (t + 3) (t2 + 9) B. (t - 3) 2 (t + 3) 2 C. (t - 3) (t + 3) 2 D. (t2 - 9) (t2 - 9)

A tree casts a shadow 9 meters long. at the same time, a building 54 meters tall casts a shadow 21 meters long. to the nearest meter, what is the height of the tree?

Which equation shows the result of substituting and expression for y from the first equation into the second equation for the given system? ly=x+5 ly-2x=2 (5 - X) - 2x = 2 (x + 5) - 2x = 2 (x + 5) + 2x = 2 (x + 5) - 2x = 0

If pg=50 and gr = 15, then what is the value of g (p+r)

In a function, every output value corresponds to exactly one input value true or false

Which expression is equivalent to six over fifteen? 6 : 15 15 : 6 6 - 15 15 - 6

Write the expression as a single natural logarithm. 3 ln 3 + 4 ln b ln 96b4 ln (27 + b4) ln 36b ln 27b4

Ralph sold brownies for $ 0.63 0.63 a piece in order to earn money to buy baseball cards. If the cards cost $ 1.35 1.35 per pack, and if Ralph had no money left over after buying them, what is the least number of brownies he must have sold?

The segments shown below could form a triangle 9,4,15 true or false

What is 65.536 rounded to the nearest whole number

What is the fraction twelve twenties in its simplest form?