Which expression is a polynomial? a. 9x^7 y^-3z b. 4x^3 - 2x^2 + 5x - 6 + 1/x c. - 13 d. 13x ^-2

What is the sum of the first six terms of the geometric series? 2 - 6 + 18 - 54 + ... -486 -364 -40 122

Which sequence could be partially defined by the recursive formula f (n + 1) = f (n) + 2.5 for n 2 1? 2.5, 6.25, 15.625, 39.0625, ... 2.5, 5, 10, 20 -10,-7.5, - 5, - 2.5, ... -10, - 25, 62.5, 156.25

Factor completely: x3 - x2y - xy2 + y3

Identity check was $58 if they gave the waiter a 20% tip how much did she spend in all

12 cm What is the radius of the cone? 1 cm 2 cm 4 cm 8 cm V = 167 cm

Nasir baked a pie and cut it in fourths. He then cut each piece in half. what fraction of the original pie does each piece represent

What is the value of 10 to the sixth

Two lines intersect and two of the vertical angles measure 37°. What is the measure of the other two vertical angles? 37° 74° 90° 143°

Make a line plot for the set of data. 61, 58, 57, 64, 59, 57, 64, 58, 56, 57

A boat travels upstream on the Allegheny River for 2hours. The return trip only takes 1.7 hours because the boat travels 2.5 miles per hour faster downstream due to the current. How far does the boat travel in one day?