Theluner calender would be inaccurate because it doesnt shouw the full 29 and a half days as the moon turns through its phases
Since the binoculars make things 10 times larger, you need to multiply 0.43 inches by 10.
0.43 inches * 10 = 4.3 inches
3x - 2 = -13
<em><u>Add 2 to both sides.</u></em>
3x = -11
<em><u>Divide both sides by 3.</u></em>
x = -3.67 (this is your answer.)
Y=x^2-5, solve for x
y+5=x^2
x=√(y+5) so
f^-1(x)=√(y+5)