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Questions in Grade College

[Jawaban] The parabola has a focus at $(-3,0)$ and directrix $x=3$. What is the correct equation for the parabola? A. $x^2=-12 y$ B. $x^2=3 y$ C. $y^2=3 x$ D. $y^2=-12 x$

[Jawaban] Question 2 2.1 Factorisation: From Procedure to Pedagogy. 2.1.1 A key principle in mathematics education is to connect abstract concepts to visual representations. The expression 2x + 4y + px + 2py can be factored by grouping. Using the area model below, demonstrate how you would visually guide a learner to understand the factorisation of this expression. Complete the model and then write down the final factored form. X 2y 2py 2x [30] (4)

[Jawaban] Select the correct answer. What is the justification for step 2 in the solution process? [tex]\frac{1}{2} r+\frac{1}{2}=-\frac{2}{7} r+\frac{6}{7}-5[/tex] Step 1: [tex]\frac{1}{2} r+\frac{1}{2}=-\frac{2}{7} r-\frac{29}{7}[/tex] Step 2: [tex]\frac{1}{2} r=-\frac{2}{7} r-\frac{65}{14}[/tex] A. the addition property of equality B. the subtraction property of equality C. the multiplication property of equality D. the division property of equality

[Jawaban] True or False: Sometimes vaccines cause autism spectrum disorder.

[Jawaban] Factorise [tex]x^2-x[/tex]

[Jawaban] What would dissolve the best in oil? A. Salt B. Grease C. Water D. Sugar

[Jawaban] Of the following terms, which one has a prefix that means deficient or below? A. Anticoagulant B. Transfusion C. Hypochromic D. Microcytic E. Macrophage

[Jawaban] Suppose the following data represent the ratings (on a scale from 1 to 5) for a certain smart phone game, with 1 representing a poor rating. Complete parts (a) through (d) below. \begin{tabular}{c|c} Stars & Frequency \\ \hline 1 & 2982 \\ 2 & 2783 \\ 3 & 3852 \\ 4 & 4078 \\ 5 & 11,551 \end{tabular} (a) Construct a discrete probability distribution for the random variable [tex]$x$[/tex]. \begin{tabular}{c|c} Stars ([tex]$x$[/tex]) & [tex]$P(x)$[/tex] \\ \hline 1 & $\square$ \\ 2 & $\square$ \\ 3 & $\square$ \\ 4 & $\square$ \\ 5 & $\square$ \end{tabular} (Round to three decimal places as needed.)

[Jawaban] When measuring wellness, you must consider A. all components of health B. your physical fitness being in the top 10% of the population C. being free of diseases D. both physical and mental health

[Jawaban] [tex]$\sqrt{5}+\sqrt[3]{70}$[/tex]