Question 19 (2 points) Match the monomer to the correct polymer. \( \begin{array}{ll}\text { polypeptide/protein } & \text { 1. monosaccharide } \\ \text { polysaccharide } & \text { 2. amino acid }\end{array} \)

To find 3 times any number, Maria doubles the number and then adds the number again. a Show how Maria would solve \( 3 \times 6 \). \( \begin{array}{l}2 \times 6=12 \\ 12+6=18\end{array} \)

\( f(x)=2 x^{2}+16 x-10 \) (a) The function's vertex is at the point \( (-4,-42) \) (Type an ordered pair, using integers or fractions.) (b) Determine whether the parabola has a maximum value or a minimum value and find the value. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a fraction.) A. The parabola opens downward and has a maximum value of B. The parabola opens upward and has a minimum value of -42 (c) The range of \( f(x) \) is \( [-42, \infty) \) (Type your answer in interval notation. Use integers or fractions for any numbers in the expression.) (d) The function is increasing on ( \( -4, \infty) \). (Type your answer in interval notation. Use integers or fractions for any numbers in the expression.) The function is decreasing on (Type your answer in interval notation. Use integers or fractions for any numbers in the expression.)

b) \( \int\left(2 x^{-3}+2 x^{-2}-x^{-1}\right) d x \)

a) \( \left\{\begin{array}{r}x+y+z=3 \\ 2 y+z=2 \\ y+2 z=2\end{array}\right. \)

A ball is thrown directly upward from a height of 6 ft with an initial velocity of \( 20 \mathrm{ft} / \mathrm{sec} \). The function \( \mathrm{s}(\mathrm{t})=-16 \mathrm{t}^{2}+20 \mathrm{t}+6 \) gives the height of the ball, in feet, t seconds after it has been thrown. The ball reaches its maximum height of (Simplify your answers. Type integers or decimals.)