Answer: 4 feet
Step-by-step explanation:
An airplane is 180 feet long.
Blake makes a scale model of the airplane which is 1:45 of its actual size. To find the length of the airplane model goes thus:
= 1/45 × 180
= 4 feet
The model is 4 feet
f(x) = (3x+5)/7
Step 1:
we write f(x) as y
y=(3x+5)/7
Step 2:
switch y by x and x by y
x=(3y+5)/7
Step 3:
solve for y,
x=(3y+5)/7
multiply both sides by 7
7x=3y+5
subtract 5 from left side
3y=7x-5
divide both sides by 3
y= (7x-5)/3
f⁻¹ (x) =(7x-5)/3
The answer if I am not mistaken would be B because the numbers are increasing by 2.
