Questions in Grade College

Questions in Grade College

[Done] What is the best order of sentences? A. $4,2,7,3,1,8,6,5$ B. $6,2,4,1,7,8,3,5$ C. $6,4,1,2,7,8,5,3$ D. $6,4,2,1,7,8,3,5$

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] What is the correlation coefficient for the data shown in the table?

[Done] Solve the system of equations: [tex] \begin{array}{l} y=-2y+6 \ -4y+y=-20 \end{array} [/tex]

[Done] Yes, because the upper limit of the 68.26% interval is less than 8 minutes. (d) How do the percentages of the 100 waiting times in Table 1.9 that actually fall into intervals [$\bar{x} \pm s$], [$\bar{x} \pm 2 s$], and [$\bar{x} \pm 3 s$] compare to those given by the Empirical Rule? Do these comparisons indicate that the statistical inferences you made in parts b and c are reasonably valid? (Round your answers to the nearest whole number.)

[Done] Perform the division. $(60 x^{18}-54 x^{17}+30 x^{16}-18 x^{15}) \div(6 x^{19})$

[Done] Decide which is the correct factored form of [tex]$7 x^2-13 x-2$[/tex]

[Done] How much would you have to deposit in an account with an $8 \%$ interest rate, compounded continuously, to have $3000 in your account 10 years later? [tex]P=[?][/tex] Round to the nearest cent.

[Done] The functions $f$ and $g$ are defined as follows. $f(x)=\frac{6 x+7}{5 x+3} \quad \text { and } \quad g(x)=\sqrt{x^2-8 x}$ Find $f\left(\frac{5}{x}\right)$ and $g(x-3)$. Write your answers without parentheses and simplify them as much as possible. $f\left(\frac{5}{x}\right)=\square$ $g(x-3)=\square

[Done] Solve the system for $x$ and $y$. $\begin{array}{l} 6 x-y=\pi \\ 8 x-5 y=-71 \end{array}$ A. (2.19) B. 12.111 C. (9.27) D. (2.11)