Write a function called getReading, which returns a Reading structure. The function should ask the user to enter values for each member of a Reading structure, then return the structure.

Write a function called getReading, which returns a Reading structure. The function should ask the user to enter values for each member of a Reading structure, and then return the structure.

In a course, a teacher gives the following tests and assignments: - A lab activity that is observed by the teacher and assigned a numeric score. - A pass/fail exam that has 10 questions. The minimum passing score is 70. - An essay that is assigned a numeric score. - A final exam that has 50 questions. Write a class named CourseGrades. The class should have a member named grades that is an array of GradedActivity pointers. The grades array should have four elements, one for each of the assignments previously described. The class should have the following member functions: setLab: This function should accept the address of a GradedActivity object as its argument. This object should already hold the student’s score for the lab activity. Element 0 of the grades array should reference this object. setPassFailExam: This function should accept the address of a PassFailExam object as its argument. This object should already hold the student’s score for the pass/fail exam. Element 1 of the grades array should reference this object. setEssay: This function should accept the address of an Essay object as its argument. (See Programming Challenge 6 for the Essay class. If you have not completed Programming Challenge 6, use a GradedActivity object instead.) This object should already hold the student’s score for the essay. Element 2 of the grades array should reference this object. setPassFailExam: This function should accept the address of a FinalExam object as its argument. This object should already hold the student’s score for the final exam. Element 3 of the grades array should reference this object. print: This function should display the numeric scores and grades for each element in the grades array. Demonstrate the class in a program.

To move 3.0 C of charge from one electrode to the other, a 12-V battery must do how much work: (a) 12 V, (b) 12 J, (c) 3.0 J, (d) 36 W, or (e) 36 J?

Verify Green’s theorem for the given vector field $\mathbf{F}=M(x, y) \mathbf{i}+N(x, y) \mathbf{j}$ and region D by calculating both $\oint_{\partial D} M d x+N d y$ and $\iint_{D}\left(N_{x}-M_{y}\right) d A.$ $\mathbf{F}=\left(x^{2}-y\right) \mathbf{i}+\left(x+y^{2}\right) \mathbf{j}$ is the rectangle bounded by x = 0, x = 2, y = 0, and y = 1.

Write a function called findReading. It should use a Reading structure reference variable (see Question 23) as its parameter. The function should ask the user to enter values for each member of the structure.

Write a function called showReading. It should accept a Reading structure variable (see Question 23) as its argument. The function should display the contents of the variable on the screen.

Use l’Hospital’s rule where applicable to find each limit. $\lim _{x \rightarrow 0} \frac{x e^{x}}{e^{x}-1}$

A(n) _______ is a key word inside a class declaration that establishes a member’s accessibility.

Modify the SimpleVector class template presented in this chapter to include the member functions push_back and pop_back. These functions should emulate the STL vector class member functions of the same name. The push_back function should accept an argument and insert its value at the end of the array. The pop_back function should accept no argument and remove the last element from the array. Test the class with a driver program.

Maximize each of the following utility functions, with the cost of each commodity and total amount available to spend given. $f(x, y)=x^{3} y^{4}$, cost of a unit of is $3, cost of a unit of is$3, and $42 is available.

Find the following function values without using a calculator. $\tan \frac{\pi}{4}$

Two identical strings on different cellos are tuned to the 440-Hz A note. The peg holding one of the strings slips, so its tension is decreased by 1.5%. What is the beat frequency heard when the strings are then played together?

Find the Taylor series for the functions defined as follows. Give the interval of convergence for each series. $f(x)=\frac{7 x}{1+2 x}$