I needed help with a algebra problem

I needed help with a algebra problem

Divide and simplify to the form a+bi 7/4-9i

I believe it is because there are no x factors in the numerator but unsure.

If y varies inversely as x, and y equals=13 when x equals=3, find y when x equals=6.

If x varies directly as y, and x equals=16 when y equals=4, find x when y equals=10.

The current in a circuit varies inversely as the resistance. The current is 18 amperes when the resistance is 2 ohms. Find the current for a resistance of 15 ohms.

((x+3)/(x2-3x-28)) - ((2)/(x2-49))

A wheelchair company determines that the cost of manufacturing them follows the cost equation , where C = Total Cost and x = number of wheelchairs manufactured. a. The 500,000 represents...

A baker sells loaves of bread in two different sizes: small and large. The baker has 40 kilograms of flour to work with. Small loaves require 0.4 grams of flour and large loaves require 0...

The length of a rectangle is 2 feet longer than the width. The area of the rectangle is 8 square feet. Draw the graph of the function A(w) that represents this problem. Determine the maxima or minima...

Explain why it is possible for a line to have no equation in point-slope form or to have infinitely many, but it is not possible that there is only one.

Math teacher didn't cover this at all in class and I have it as a homework problem. Thanks

The first order was for 35 T-shirts and it cost $337.50. The second order was for 56 T-shirts and it cost $516. The prices include a standard shipping and handling charge. What is the cost per...

Sven has been on a diet for a couple of months now. When he got on the scale this morning, he weighed in at 242.4 lbs, a marked improvement over the 252 lbs that he weighed 16 days ago. (a)...

I know the answer is 20 but I can't figure out how to write the equation

Solve each system of inequalities by graphing. x+2y<10, x+2y>9. Both <> have line under them

3y-x=-3 y=-2x+6

Use the four-step procedure to solve the variation problem. When the temperature stays the same, the volume of a gas varies inversely as the pressure of the gas. If a balloon is filled with 330...

Use the four-step procedure to solve the variation problem. x varies inversely as v. x equals=20 when v equals=9. Find x when v equals=36.

Determine the constant of variation for the stated condition. y varies inversely as x, and y equals=6 when x equals=11

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