Simplify the expression. Write your answer in the

form a + bi.

(7+3i) - (4-21)

Wat is a composite number

Jacob's daily tips this work week were $99, $78, $58, $91, $90, and $68. Is Jacob correct in thinking that the median best represents how much money he makes in daily tips?

If David plays three tennis matches every week for nine weeks how many matches did you play altogether

Determine whether the variable X has a binomial distribution in each of the following cases. If it does, explain why and determine the values of the parameters n and p. If it doesn't, explain why not.

Put the numbers in order from least to greatest: 5, 0, |-1|, |4|, - 2

A scientist has a 120 mg sample of an unstable isotope. The amount of the substance remaining in the sample decreases at a rate of 16% each day. At the end of t days, there is less than 30 mg of the substance remaining.

A rectangular plot of land is to be fenced in using two kinds of fencing. Two opposite sides will use heavy-duty fencing selling for $3 a foot, while the remaining two sides will use standard fencing selling for $2 a foot.

How to recipacte fractions

Define a variable and write an inequality to represent in thus situations ... No one under 23 is allowed to captain an airplane

19125 people, exactly 75%, what is the total population of the town