Answer:
$20.41
Step-by-step explanation:
1. 42.7/11.1 = 3.85
2. 5.30 times 3.85= 20.41
3. $20.41
For lines to be perpendicular to each other their slopes must be negative reciprocals of one another, mathematically:
m1*m2=-1
Since y=2x-1 has a slope of 2, our perpendicular line must have a slope of:
2m=-1, m=-1/2, so our perpendicular line will be of the form:
y=-x/2+b, using the point (-2,-2) we can solve for the y-intercept, or "b".
-2=--2/2+b
-2=1+b
b=-3, then our perpendicular line is:
y=-x/2-3 or more neatly
y=-0.5x-3
First you do is add 14 to both sides 2x>16
then you divide 2 to both sides 2x/2>16/2
and ur answer will be x>8
Inverse of y=9-x²; you just replace x by y and y by x: x=9-y².
And the value of y: y² = 9-x and y =√(9 - x) [this is the inverse function]
f⁻¹(x) = √(9-x): CONDITION : (9-x) >=0, that means x< or = 9
Answer as per your problem:
The inverse of the function y = 9 - x 2, for all values x ≥ 3, is _____y =√(9 - x), where x can take values _____x<=9.
