Algebra Answers

In a quiz, there are 20 multiple choice questions. Each correct answers scores 7points, each wrong answer scores -4 points, and each blank answer scores 0 points. Omar took the quiz and scored a 100 points. How many questions did he leave blank?

A) 0

B) 1

C) 2

D) 3

E) 4

A new car is purchased for 21100 dollars. The value of the car depreciates at 10.5% per year. What will the value of the car be, to the nearest cent, after 6 years?

Manipulate the above equations in the form of y=mx+c and find the slope and y- intercept as well

1.y=aexp(bx)

2.(y+x)(y-x)=a

3.y=acosx^2+bsinx^2

4.yx^2=c

show step by step:

subtract ( 6x² + 8x - 6) from ( 7x² + 8x - 4)

show step by step:

(3x + 6) - ( 3x - 6)

show step by step:

(3x³ + 6x² - 18x) + (4x² - 24x + 8)

show step by step:

(x²+ 6x + 5) + ( x² + 6x + 5)

show step by step:

(3x² + x - 4) - ( 4x - 6 + 8x²)

show step by step:

(5x - 6) - ( 8x + 2)

show step by step:

( 3x - 6y) + ( 2x + y)