Questions in Grade College

Questions in Grade College

[Answered] Which of the following best explains why [tex]$\cos \frac{2 \pi}{3} \neq \cos \frac{5 \pi}{3}$[/tex] ? A. The angles do not have the same reference angle. B. Cosine is negative in the second quadrant and positive in the fourth quadrant. C. Cosine is positive in the second quadrant and negative in the fourth quadrant. D. The angles do not have the same reference angle or the same sign.

[Answered] What is the following sum? [tex]$5 x\left(\sqrt[3]{x^2 y}\right)+2\left(\sqrt[3]{x^5 y}\right)$[/tex] A. [tex]$7 x\left(\sqrt[6]{x^2 y}\right)$[/tex] B. [tex]$7 x^2\left(\sqrt[6]{x y^2}\right)$[/tex] C. [tex]$7 x^2\left(\sqrt[3]{x y^2}\right)$[/tex] D. [tex]$7 x\left(\sqrt[3]{x^2 y}\right)$[/tex]

[Answered] Solve for $a$. $a-12=b$

[Answered] Which values of $x$ and $y$ would make the following expression represent a real number? $(4+5)(x+y i)$ A. $x=4, y=5$ B. $x=-4, y=0$ C. $x=4, y=-5$ D. $x=0, y=5$

[Answered] Use a graphing tool to solve the equation for $x$. $-4 x-1=5^x+4$ A. $x \approx-0.25$ B. $x \approx-1.25$ C. $x \approx-1$ D. $x \approx-1.50$

[Answered] What New Deal programs do you know still exist today? Would we be better or worse off if those did not exist?

[Answered] How do memory researchers define forgetting? A. inability to retrieve information from long-term memory B. inability to retain information in working memory long enough to make use of it

[Answered] A treasure map says that a treasure is buried so that it partitions the distance between a rock and a tree in a $5: 9$ ratio. Marina traced the map onto a coordinate plane to find the exact location of the treasure. $x=\left(\frac{m}{m+n}\right)\left(x_2-x_1\right)+x_1 $ $y=\left(\frac{m}{m+n}\right)\left(y_2-y_1\right)+y_1$ What are the coordinates of the treasure? If necessary, round the coordinates to the nearest tenth.

[Answered] 0.5 is how many times the value of 0.05?

[Answered] In a lump sum contract where the owner and contractor have agreed to a fixed price, what happens if the contractor completes the project for less than the anticipated price? A. The contractor will find ways to spend the money on the project to boost their payroll. B. The contractor will return a portion of the additional money to the owner and architect. C. The owner will identify building elements to upgrade and use the money on those. D. The additional money goes in the contractor's pocket as profit.