Clarissa has just completed her second semester in college. She earned a grade of B in her 3 -hour calculus course, a grade of C in her 5 -hour economics course, a grade of B in her 4 -hour engineering course, and a grade of C in her 3 -hour studio art course. Assuming that A equals 4 points, B equals 3 points, C equals 2 points, D equals 1 point, and F is worth no points, determine Clarissa's grade-point average for the semester. Clarissa's grade point average is 2.47 . (Round to two decimal places as needed.)

Secuencia 2. Comparación y orden de fracciones y números decimales con 9. ¿Cuál de las siguientes opciones representa un número menor en valor absolutc \( \begin{array}{lll}\text { a) }-0.75 & \text { b) }-2 / 3 & \text { c) } 1 / 2\end{array} \)

Which one of the following hypotheses is/are valid? 1. \( H_{0}: \mu \leq 100 ; H_{1}: \mu \geq 100 \) 2. \( H_{0}: \mu=120 ; H_{1}: \mu \neq 120 \) 3. \( H_{0}: \mu \neq 130 ; H_{1}: \mu=130 \) 4. \( H_{0}: \bar{X} \leq 210 ; H_{1}: \bar{X}>210 \) 5. \( H_{0}: p \neq 0.42 ; H_{1}: p=0.42 \)

PROBLEMA 2 CALCVLA EL \% VIN IE UNA SOLUCIÓN CUVO SOLUTO ES EL DOBLE E Q 25 mL OE SOLVTO Y 1.5 ML OE H2O.CALCULA EL PORCENTAJE DEL SOLUTO.

\( \begin{array}{ll}\text { 7. } F(x)=\left(x^{4}+3 x^{2}-2\right)^{5} & \text { 8. } F(x)=\left(4 x-x^{2}\right)^{100} \\ \text { 9. } F(x)=\sqrt{1-2 x} & \text { 10. } f(x)=\frac{1}{(1+\sec x)^{2}} \\ \text { 11. } f(z)=\frac{1}{z^{2}+1} & \text { 12. } f(t)=\operatorname{sen}\left(e^{t}\right)+e^{\operatorname{sen} t} \\ \text { 13. } y=\cos \left(a^{3}+x^{3}\right) & \text { 14. } y=a^{3}+\cos ^{3} x \\ \text { 15. } y=x e^{-k x} & \text { 16. } y=e^{-2 t} \cos 4 t \\ \text { 17. } f(x)=(2 x-3)^{4}\left(x^{2}+x+1\right)^{5} & \\ \text { 18. } g(x)=\left(x^{2}+1\right)^{3}\left(x^{2}+2\right)^{6} & \\ \text { 19. } f(t)=(t+1)^{2 / 3}\left(2 t^{2}-1\right)^{3} & \\ \text { 2n } F(t)=(3 t-1)^{4}(2 t+1)^{-3} & \end{array} \)

27 in base ten \( \left(27_{\text {ten }}\right) \)