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Questions in Grade College

📝 Answered - Which of the following shows the extraneous solution to the logarithmic equation [tex]$\log _7\left(3 x^3+x\right)-\log _7(x)=2$[/tex]? A. [tex]$x=-16$[/tex] B. [tex]$x=-4$[/tex] C. [tex]$x=4$[/tex] D. [tex]$x=16$[/tex]

📝 Answered - Which scenario can be represented using the inequalities below? [tex]$1.25 \leq x \leq 1.5$[/tex] A. A container of milk costs at least $1.25 but less than $1.50. B. A student spends at least 1 hour 15 minutes, but no more than 1 hour 30 minutes on homework. C. A tip added to a restaurant bill is less than or equal to 25% or less than or equal to 50%. D. The point value of a test item is more than 1.25 points and less than 1.5 points.

📝 Answered - Raquel and Van live in two different cities. As part of a project, they each record the lowest prices for a gallon of gas at gas stations around their cities on the same day. Raquel's data show [tex]$\bar{x}=3.42$[/tex] and [tex]$\sigma=0.07$[/tex]. Van's data show [tex]$\bar{x}=3.78$[/tex] and [tex]$\sigma=0.23$[/tex]. Which statement is true about their gas-price data? A. Raquel's data are most likely closer to $3.42 than Van's data are to $3.78. B. Van's data are most likely closer to $3.42 than Raquel's data are to $3.78. C. Raquel's data are most likely closer to $3.78 than Van's data are to $3.42. D. Van's data are most likely closer to $3.78 than Raquel's data are to $3.42.

📝 Answered - Divide these two fractions: [tex]$\frac{3}{8} \div \frac{1}{6}=?$[/tex]

📝 Answered - Which of the following are awkward positions that can pose a risk of injury when you lift? A. When you bend at the waist B. When you stand up straight C. When you reach forward or over your head D. Both A and C are correct. E. All of the above are correct

📝 Answered - Convert the decimal $0.929292 \ldots$ to a fraction. $\frac{92}{99}$ $\frac{92}{999}$ $\frac{92}{100}$ $\frac{92}{1000}$

📝 Answered - Which is an example of a local wind? A. windchill B. a jet stream C. a trade wind D. a sea breeze

📝 Answered - Type the correct answer in the box. Round your answer to the nearest hundredth. Element $X$ has two isotopes. The table gives information about these isotopes. | Isotope | Atomic Mass (amu) | Abundance (%) | |---|---|---| | $X-63$ | 62.9296 | 69.15 | | $X-65$ | 64.9278 | 30.85 | The average atomic mass of element $X$ is $\square$ amu.

📝 Answered - Determine the sum. Write your answer in scientific notation. [tex]4.4 \times 10^4+12.3 \times 10^4=[/tex]

📝 Answered - Social learning theory includes the concepts of (select all that are correct): A. vicarious reinforcement B. unconditioned stimulus C. vicarious punishment D. imitation E. positive reinforcement