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Questions in Grade High-school

[Terjawab] 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.

[Terjawab] 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

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

[Terjawab] 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.

[Terjawab] 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

[Terjawab] The value of a computer depreciates with age, as shown in the table. Value of a Computer | Age of computer (years) | Value of computer ($) | | :---------------------- | :-------------------- | | 0 | 1,600.00 | | 1 | 1,280.00 | | 2 | 1,024.00 | | 3 | 819.20 | | 4 | 655.36 | Which function represents the value of a computer after [tex]$t$[/tex] years? A. [tex]$f(t)=1,600-226.16 t$[/tex] B. [tex]$f(t)=1,600-320 t$[/tex] C. [tex]$f(t)=1,600(0.2)^t$[/tex] D. [tex]$f(t)=1,600(0.8)^t$[/tex]

[Terjawab] How is the equilibrium constant of a reaction determined? The molarity of products is multiplied by the molarity of reactants.

[Terjawab] Ted is a single guy who's living the good life. The spreadsheet below shows Ted's cash flow for a month. | | A | B | |---|-----------------------|--------| | 1 | Cash Inflows | | | 2 | Disposable income | $5,000 | | 3 | Interest on deposits | $0 | | 4 | Income from investments | $225 | | 5 | Total Cash Inflow | $5,225 | | 6 | | | | 7 | Cash outflows | | | 8 | Rent | $3,000 | | 9 | Utilities | $250 | | 10| Satellite dish | $175 | | 11| Cell phone plan | $135 | | 12| Car lease payments | $385 | | 13| Groceries | $200 | | 14| Insurance | $380 | | 15| Recreation | $700 | | 16| Total Cash Outflow | $5,225 | Based on his monthly cash flow, explain what part of Ted's financial plan might be missing and why.

[Terjawab] $3.4^x+\frac{9^{x+2}}{3}=6.4^{x+1}-\frac{9^{x+1}}{2}$

[Terjawab] As the human population grows, what happens to our natural-resource requirements? A. They increase. B. They decrease. C. They do not change. D. They go in cycles.