Evaluate exactly all six trigonometric functions of the angle. Use reference triangles and not your calculator.

$$420°$$

Calculate the molar mass of CuNO$_3$.

In this exercise, write each sentence as an inequality in two variables. Then graph the inequality.

The $y$-variable is at least $2$ more than the product of $-3$ and the $x$-variable.

A fireman on a ladder 80 ft above ground should be able to spray water an additional 30 ft up with the hose nozzle of exit diameter 1 in. Assume a water pump on the ground and a reversible flow (hose, nozzle included) and find the minimum required power.

Evaluate exactly all six trigonometric functions of the angle. Use reference triangles and not your calculator. $$ -\dfrac{ $$ $$

Refer to Exercise 20.25. Forecast next year’s enrollment using the following methods. Autoregressive forecasting model.

Write an editorial in which you make the case for or against the concept of nullification. Support your argument with examples from the section.

What is the molar mass of $\ce{CuSO4.5H2O}$?

As a reporter in 1787, write an article describing the goals and structure of the newly created U.S. Constitution.

A two-mass system is shown in Figure . The rolling friction constant is $b$. Determine a state variable representation when the output variable is $y_2(t)$.

Solve for the variable indicated. A=½bh for b

What is the molar mass of $\ce{CaC2O4}$?

Three circles with radii 1,2, and 3 ft are externally tangent to one another, as shown in the figure. Find the area of the sector of the circle of radius 1 that is cut off by the line segments joining the center of that circle to the centers of the other two circles.

Describe a natural concept that you know fully but that would be difficult for someone else to understand and explain why it would be difficult.