Questions in Grade College

Questions in Grade College

[Jawaban] What are the solutions of the equation [tex]$x^4+95 x^2-500=0$[/tex]? Use factoring to solve. A. [tex]$x= \pm \sqrt{5}$[/tex] and [tex]$x= \pm 10$[/tex] B. [tex]$x= \pm i \sqrt{5}$[/tex] and [tex]$x= \pm 10 i$[/tex] C. [tex]$x= \pm \sqrt{5}$[/tex] and [tex]$x= \pm 10 i$[/tex] D. [tex]$x= \pm i \sqrt{5}$[/tex] and [tex]$x= \pm 10$[/tex]

[Jawaban] By rounding to 1 significant figure, estimate the answers to these questions: a) $76 \times 23$ b) $297 \times 589$ c) $715 \times 283$

[Jawaban] Emily has the following regular test scores in her economics class: 83, 91, 66, 89, 85. On her final exam, she scored a 97. When determining students' final averages, the professor drops the lowest regular test score, and then counts the remaining regular tests as 50% of the total average. What will Emily's final average be?

[Jawaban] Which larger capacity compressor uses two meshing rotors to compress refrigerant vapor? A. Scroll B. Reciprocating C. Rotary-vane D. Screw

[Jawaban] Is $(1,3)$ a solution to the system of inequalities below? [tex]\begin{array}{l} y\ \textgreater \ 3x-1 \ y\ \textless \ -3 x \end{array}[/tex] Why or why not? A. Yes, $(1,3)$ is not a solution to the inequalities because when you plug in the 1 for $x$ and the 3 for $y$ it creates two true statements. B. Yes, $(1,3)$ is not a solution to the inequalities because when you plug in the 1 for $x$ and the 3 for $y$ it creates two false statements. C. No, $(1,3)$ is not a solution to the inequalities because when you plug in the 1 for $x$ and the 3 for $y$ it creates two false statements. D. No, $(1,3)$ is not a solution to the inequalities because when you plug in the 1 for $x$ and the 3 for $y$...

[Jawaban] Raj encoded a secret phrase using matrix multiplication. Using $A=1, B=2, C=3$, and so on, he multiplied the clear text code for each letter by the matrix $C=\left[\begin{array}{ll}2 & 5 \\ 1 & 2\end{array}\right]$ to get a matrix that represents the encoded text. The matrix representing the encoded text is $\left[\begin{array}{ccccccc}85 & 111 & 135 & 111 & 95 & 101 & 153 \\ 38 & 46 & 55 & 45 & 41 & 44 & 64\end{array}\right]$. What is the secret phrase? Determine the location of spaces after you decode the text. A. YUMMY IS THE CORN B. THE TOMATO IS RED C. THE CORN IS YUMMY D. RED IS THE TOMATO

[Jawaban] Which event described in chapter 1 of The Scarlet Letter takes place before the story begins? A. The crowd discusses Hester's crime. B. The crowd walks to the scaffold C. The Puritans elect officials D. The Puritans erect a jail.

[Jawaban] Bed rails should be used for every patient. True or False

[Jawaban] Select the correct answer. What is a treaty? A. an informal agreement between two or more nations B. a formal agreement between two heads of state C. an informal agreement between two heads of state D. a formal agreement between two or more nations

[Jawaban] Simplify $3^2+3\left(6-2^2\right) \div 6$ A. 4 B. 10 C. 11 D. 7