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Questions in Grade High-school

[Answered] What is the purpose of a search engine? A. To help you find information on the World Wide Web. B. To store Web pages. C. To create and edit Web pages. D. To provide access to the Internet.

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

[Answered] How does a small, nonpolar gas like oxygen get across a membrane? A) Active transport from a low to high concentration B) Diffusion from a high to low concentration C) Osmosis from a high to low concentration D) Membrane transport (facilitated diffusion) from a high to low concentration

[Answered] The median of an ordered dataset with an even number of observations is the: (A) Mean of the two middle values (B) Mode of the dataset (C) Middle value of the dataset (D) Sum of the two middle values

[Answered] A, B, and C are partners sharing profits in the ratio 5:3:2. C retires and his entire share is taken by A. Calculate the new profit sharing ratio of A and B. (Answer: New Profit Sharing ratio 7:3)

[Answered] The 2012 general social survey asked a large number of people how much time they spent watching TV each day. The mean number of hours was 3.09 with a standard deviation of 2.97. Assume that in a sample of 38 teenagers, the sample standard deviation of daily TV time is 3.3 hours, and that the population of TV watching times is normally distributed. Can you conclude that the population standard deviation of TV watching times for teenagers differs from 2.97? Use the α = 0.10 level of significance. State the appropriate null and alternate hypothesis: H0: σ = 2.97 H1: σ ≠ 2.97 This hypothesis test is a chi-square test. Find the critical values. Round the answer to three decimal places. For α = 0.10, the critical values are 23.542 and 52.192. Compute the test statistic. Round the answer to three decimal places. χ² = 45.684 Determine whether to reject H0. At the α = 0.10 level, the null hypothesis H0 should not be rejected because the test statistic falls between the critical values.

[Answered] A student at a university is copying content from generative AI to write essays. Which challenge of responsible generative AI does this scenario represent? A. Toxicity B. Hallucinations C. Plagiarism D. Privacy

[Answered] Fill in the blanks. a) 9 more than 8109 is b) 10 more than 2120 is c) 100 more than 31290 is

[Answered] You are responsible for creating and maintaining an enterprise application that consists of multiple storage volumes across multiple compute instances in Oracle Cloud Infrastructure (OCI). The storage volumes include boot volumes and block volumes for your data storage. You need to create a backup for the boot volumes that will be done daily and a backup for the block volumes that will be done every week. How can you meet this requirement? A) Create clones of all boot volumes and block volumes one at a time. B) Group both boot volumes and block volumes in a volume group and create volume group backups. C) Create on-demand full backups of block volumes, and create custom images from the boot volumes. Use a function to run at a specific time to start the backup process. D) Create two volume groups for grouping boot volumes and block volumes separately. Create two custom backup policies as per requirement.

[Answered] According to the second-order condition for saddle points, what must be true about the eigenvalues of the Hessian matrix at a saddle point? A. At least one eigenvalue is positive and one is negative B. All eigenvalues are positive C. All eigenvalues are negative D. All eigenvalues are zero