IdeasCuriosas - Every Question Deserves an Answer Logo

Questions in Grade College

[Answered] What is dependence? A. When a person stops using drugs and experiences withdrawals. B. When a person needs help from another person. C. None of the above

[Answered] $2 \frac{7}{11} \div \frac{7}{8}$

[Answered] 3) [tex]y=-3(4)^x ; \quad x=2[/tex]

[Answered] The depth (in feet) of water at a dock changes with the rise and fall of tides. The depth is modeled by the function [tex]$D(t)=4 \cos \left(\frac{\pi}{4} t+\frac{9 \pi}{4}\right)+2$[/tex] where [tex]$t$[/tex] is the number of hours after midnight. Find the rate at which the depth is changing at 5 a.m. Round your answer to 4 decimal places and make sure your calculator is in radian mode. [tex]$\square$[/tex] ft/hour

[Answered] Identify each region of the electromagnetic spectrum by correctly placing the names listed. A. Infrared B. Radio Ultraviolet Gamma ray X-ray Microwave

[Answered] Solve the following system of equations by the substitution method. Check the solutions. $\left\{\begin{array}{l} y=x^2 \\ y=2 x+8 \end{array}\right.$ The solution set is $\square$ . (Type ordered pairs. Use a comma to separate answers as needed.)

[Answered] Evaluate the following. Click on "Not a real number" if applicable. (a) $\sqrt[3]{-27}=$ Not a real number (b) $\sqrt[4]{-81}=$

[Answered] Students at a virtual school are allowed to sign up for one math class each year. The numbers of students signing up for various math classes for the next school year are given in the following table: | Grade | Geometry | Algebra II | Pre-Calculus | AP Statistics | Total | |---|---|---|---|---|---| | 10th | 20.7% | 10.3% | 3.4% | 0.7% | 35.2% | | 11th | 6.7% | 13.8% | 10.3% | 2.8% | 33.8% | | 12th | 1.4% | 6.7% | 13.8% | 9% | 31% | | Total | 29% | 31% | 27.6% | 12.4% | 1 | A student calculated the joint relative frequency of 10th grade students in geometry as being $71.4 \%$. What did the student actually calculate, and what is the correct answer? A. The student calculated the conditional relative frequency for students who are in 10th grade, given that they are enrolled in Geometry. The correct value of the joint relative frequency of 10th grade students in geometry is $20.7 \%$. B. The student calculated the conditional relative frequency for students who are in 10th grade, given that they are enrolled in Geometry. The correct value of the joint relative frequency of 10th grade students in geometry is $29 \%$. C. The student calculated the marginal relative frequency for 10th grade students in geometry. The correct value of the joint relative frequency of 10th grade students in geometry is 20.7\%. D. The student calculated the marginal relative frequency for 10th grade students in geometry. The correct value of the joint relative frequency of 10th grade students in geometry is 29\%.

[Answered] Which of the following statements would make the rational expression below undefined? [tex]\frac{b-a}{b+a}[/tex] A. [tex]$b=-a$[/tex] B. [tex]$b=0$[/tex] C. [tex]$b=a$[/tex] D. [tex]$a=0$[/tex]

[Answered] Which of the following songs represents the greatest single event leading to the establishment of Nashville as a world music center? A. Waitin' for a Train B. Faded Love C. The Tennessee Waltz D. Your Cheatin' Heart