Answer:
.
Step-by-step explanation:
We are given 
and 
are zeros of the polynomial 
.
We want to find the value of 
if 
.
Lets use veita's formula.
By that formula we have the following equations:
(-b/a where the quadratic is ax^2+bx+c)
(c/a)
Let's simplify those equations:
If and , then 
.
Let's solve this for k:
Subtract 6 on both sides:
Find a common denominator:
Simplify:
.
X - (X)(.20) = $120
X (1 - .20) = $120
X (.80) = $120
X = $150
Original price of the boots was $150.
Answer:
28mph
Step-by-step explanation:
F ( x ) = ( x + 7 ) ( x + 4 ) - ( x + 5 ) ( x + 2 ) =
= ( x² + 4 x + 7 x + 28 ) - ( x² + 2 x + 5 x + 10 ) =
= ( x² + 11 x + 28 ) - ( x² + 7 x + 10 ) =
= x² + 11 x + 28 - x² - 7 x - 10 = 4 x + 18
Answer:
The area of the shaded region is 4 x + 18.
Answer:
75.36cm
Step-by-step explanation:
We use the pithagorean theorem: height^2 = 152^2 - 132^2 = 5680;
height = 
