Solve the inequality algebraically. \[ \frac{x+5}{x-9} \geq 1 \] The solution is (Simplify your answer. Type your answer in interval notation. Use integers or fractions for any numbers in the expression.)

Find the indicated value of the function \( f(x, y, z)=6 x-5 y^{2}+5 z^{3}-7 \). \( f(6,-6,3) \) \( f(6,-6,3)=\square \)

If \( x-6=0 \) is one of the solutions of the equation \( x+\frac{40}{x}=16 \), determine ONE value of \( y \) for which \( 2 y+3+\frac{40}{2 y+3}=16 \)

If \( x-6=0 \) is one of the solutions df the equation \( x+\frac{40}{x}=16 \), determine ONE value of \( y \) for which \( 2 y+3+\frac{40}{2 y+3}=16 \)

Qual è il grado di un polinomio se la funzione \( f(x) = 2x^4 - 3x^3 + x - 5 \)?

12.3 The equations \( x^{2}+a x+b=0 \) and \( x^{2}+b x+a=0 \) both have real and equal roots. Solve for \( a \) and \( b \), where \( a>0 \) and \( b>0 \).