Multiply. Simplify by combining like terms.(a + 0.9b)2

A. a2 + 1.8ab + 0.81b2
B. 2a2 + 1.8b2
C. a2 + 0.81ab + 0.81b2
D. a2 + 0.81b2


Answer: A

Mathematics

You might also like to view...

Solve the system. If there is no solution or if the system's equations are dependent, so state.

A. no solution or ? B. {(3, 3, -1)} C. {(2, -8, -5)} D. infinitely many solutions; dependent equations

Mathematics

Choose the equation that matches the graph.

A. 4y2 - 25x2 = 100 B. 25x2 - 4y2 = 100 C. 25x2 + 4y2 = 100 D. 4x2 - 25y2 = 100

Mathematics

Provide an appropriate response.Let f(x) = . Find f(4) - f(-4)

Fill in the blank(s) with the appropriate word(s).

Mathematics

Find the sum of the series.

Mathematics