Wolume of a Cone \( =\frac{\pi r^{2} h}{3} \) where \( r \) is the radius of the cone's base and \( h \) is the height of the cone. Find the approximate volume of a cone \( h \) is 4 cm . A. \( 339 \mathrm{in}^{3} \) B. \( 1018 \mathrm{in}^{3} \) C. \( 75 \mathrm{in}^{3} \) D. \( 151 \mathrm{in}^{3} \)

A triangle that has perimeter side proportions of __ when the three sides are divided by the same number is a perfect \( 90^{\circ} \) triangle. a. \( 1: 2: 3 \) b. \( 2: 3: 4 \) c. \( 3: 4: 5 \) d. \( 4: 5: 6 \)

Solve the inequality. Express your answer using set notation and interval notation. Graph the solution set. \( -6 \leq 6-4 x \leq 3 \) The solution is expressed in set notation as \( \{x \mid \square\} \) The solution is expressed in interval notation as Choose the correct graph of the solution set below.

Write the expression in the standard form \( \mathrm{a}+\mathrm{b} i \). \( \qquad-6+4 i)-(8-3 i) \) \( (-6+4 i)-(8-3 i)=\square \) (Simplify your answer. Type your answer in the form \( a+b i \).

1) \( (x+5)^{3} \)

What is the difference? \( \begin{array}{l}3-6 \\ -3 \\ -9 \\ -9 \\ -3\end{array} \)