the correct answers would be yes,no,yes,yes, and no. the yes answers all simplify to the expression 42x+14
Step-by-step explanation:
here's the answer to your question
Step-by-step explanation:
we solve for x
15x-(2/x)>1. /*x
15x^2 -2 > x. /-x
15x^2 -x -2 > 0
Solve the quadratic at zero
15x^2 -x -2=0
using the quadratic formula
x1,2 = [1+-sprt((-1)^2-4(15)(-2))]/2(15)
= [1+- sqrt (121)]/30
= [1+-11]/30
x1= 12/30= 2/5
x2= -10/30= -1/3
therefore this positive parabola is greater than zero or positive when
x< -1/3 and x> 2/5
12)inches
13)miles
14)meters
This is all I know, sorry
The graph flips over the x- axis is the best answer. When you multiply a function by -1, you actually multiply both sides of the equation by- 1, . Doing so will give you the same line. If the equation has an intercept, the line will flip over the horizontal line at the intercept