The answer is C) the slope is 2.50 and the y-intercept is 9, assuming the question refers to the parameters of his monthly cost.
His cost function could be described as y= 2.5x + 9, where x is the number of comic books he purchases. If he buys no comic books, he still has to pay the $9 membership fee.
10x = 5 Answer: x = 1/2
−5 = x + 6 Answer: x = -11
22 = 22x Answer: x = 1
0 = −7x Answer: x = 0
−x = 7 Answer: x = -7
x/4 = 1/2 Answer: x = 2
x/5 = 20 Answer: x = 100
x/-2 = -5 Answer: x = 10
5x = 55 Answer: x = 11
−3x = 18 Answer: x = -6
12 = x -6 Answer: x = 18
16x^2=9
x^2=9/18
x=sqrt(9/16)
x=3/4,-3/4
so the root of the quadratic equation are 3/4 and -3/4
Answer:
Step-by-step explanation:
let : x the length and y the width .... ( x > y and x ; y reals numbers )
the perimeter is : 2(x+y)
2(x+y) = 55...(1)
x/y = 7/4 ...(2)
by (2) : x = (7/4)y
subsct in (1) : 2( (7/4)y +y ) =55
(7/2)y +2y =55
multiply by 2
7y +4y = 110
11y = 110
y = 10
x = (7/4)(10)
x = 35/2
Answer:
-8y = 3x
Step-by-step explanation:
