Answer:
Using the inverse composition rule you know that if (fog)=x and (gof)=x then the functions are inverses.
(
g
o
f
)
=
(
7
x
+
1
)
−
1
7 this will result in (gof)=x
(
f
o
g)
=
7
x
−
1
7
+1
=
x
−
1
+
1
=x
graphically you can check this if it seems that the functions are reflected over the line x=y.
Step-by-step explanation:
Jenny needs $1,172.95. To solve this you need to subtract the amount Jenny already has from her goal. Then you should get your answer.
Answer:
zero dollars
Step-by-step explanation:
19+ (-19) simplifies to 19-19
19-19 equals 0
C because the most common factor would be 15 cus 15 goes into 15 once, 30 twice, and 60 four times which is an easy way of figuring out the the greatest common factor and I hope that helped :-)
The plane will make an angle 
with the runway.
Explanation:
Given that the plane is flying at an altitude of 11 miles and is 193 miles from the runway, as measured from the ground.
We need to determine the angle that the plane will make with the runway.
From the given measurements, we can see that it is a right angled triangle. Hence, let us use the tangent formula to determine the angle.
The formula for the tangent is given by
Where 
and 
Substituting these values in the above equation, we get,
Dividing, we get,
Taking 
on both sides of the equation, we get,
Simplifying, we have,
Hence, the angle that the plane will make with the runway is
