If x+yi/i = 8 + 10i, where x and y are real, what is the value of (x + yi) (x - yi) ?

A 164

B 150

C. 75

D. 100

Two times a number plus three equals one half of the number plus 12. What is the number?

Given: f (x) = 22 (1.77) X Is this exponential growth or decay? What is the rate of growth or decay? What was the initial amount?

Write a mathematical sentence that expresses the information given below. Use g as your variable name. If necessary: type < = to mean < or > Fito mean >. The number of gallons of gas that were in the tank plus 13 more adds up to 76 gallons.

The cost per minute for a conference phone call originally $2.60 increased by 30% what is the new price

Continué this pattern of shapes for three more steps Triangle, square, pentagon Explain the pattern or how you continued it

Alvin had two jobs last year, and he received two W-2 forms. On the first W-2 form, the figure in box 1 was $14,389.26, while on the second W-2 form, the figure in box 1 was $9397.18. What was Alvin's gross income from the two jobs last year

A-2=3/4 solve following equation for a.

What is the greatest common factor of 4?

What is the approximate area of a 70 decree sector of a circle with a radius of 8 inches

How many different triangles can be drawn with the angle measures 90 45 and 45