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Step-by-step explanation:
(a+b)(a+b)² = (a+b)(a²+2ab+b²)
=a(a²+2ab+b²) + b(a²+2ab+b²)
= a³+2a²b+ab² + a²b+2ab²+b³
=a³+2a²b+ a²b+ab² +2ab²+b³
=a³+3a²b+3ab²+b³
Answer:
B
Step-by-step explanation:
In a box and whisker plot, the line inside of the box is the median. Using the numbers at the bottom of the graph, you can tell that the median income for police officers is 30 thousand dollars. The median income for musicians is also 30 thousand dollars. So the second answer is correct.
Answer:
the measure of C is 90°
Step-by-step explanation:
it's a right angle
all right angles are 90°
Answer: -3
Step-by-step explanation: