C...to show this, interchange letters: x = (y+1)/(y-1)xy-x = y + 1xy - y) = x + 1y(x-1) = x+1y = (x+1)/(x-1) ⇐ this is f-1(x) and it's identical to f(x). Note: <span>the equal sign is missing in the definitions of the functions c. & d.</span>
Answer:
the third one
Step-by-step explanation:
add 2y and 16 to both sides. then divide by 2
Answer:
40 mph
Step-by-step explanation:
10 miles*4 hours = 40 miles
