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Questions in Grade High-school

[Done] $\frac{8^3-4 \cdot 5^3}{(4-4 \cdot 15) \div 7}$

[Done] Point P is on line segment [tex]$O Q$[/tex]. Given [tex]$O P=6, O Q=4 x-3$[/tex], and [tex]$P Q=3 x$[/tex], determine the numerical length of [tex]$\overline{O Q}$[/tex].

[Done] There are many parts of a document: header, footer, and body. In which of those does the header appear? A. header (top part) B. body (main part) C. footer (bottom part)

[Done] A scatterplot is used to display data where [tex]$x$[/tex] is the amount of time, in minutes, one member can tolerate the heat in a sauna, and [tex]$y$[/tex] is the temperature, in degrees Fahrenheit, of the sauna. Which interpretation describes a line of best fit of [tex]$y=-1.5 x+173$[/tex] for the data? A. The member can tolerate a temperature of [tex]$173^{\circ}$[/tex] Fahrenheit for 0 minutes. B. The amount of time the member can tolerate the heat in a sauna is 173 minutes. C. The time increased 1.5 minutes for every degree Fahrenheit the temperature increased. D. The time decreased 1.5 minutes for every degree Fahrenheit the temperature decreased.

[Done] Which equation correctly uses the law of cosines to solve for $y$? $9^2=y^2+19^2-2(y)(19) \cos \left(41^{\circ}\right)$ $y^2=9^2+19^2-2(y)(19) \cos \left(41^{\circ}\right)$ $9^2=y^2+19^2-2(9)(19) \cos \left(41^{\circ}\right)$ $y^2=9^2+19^2-2(9)(19) \cos \left(41^{\circ}\right)$ Law of cosines: $a^2=b^2+c^2-2 b c \cos (A)$

[Done] What effects do low interest rates have on the economy?

[Done] Which of the following is a flat surface that extends infinitely, has length and width, but does not have depth? A. Angle B. Circle C. Plane D. Segment

[Done] Graph the equation [tex]y =5| x |[/tex]. Let [tex]x =-3,-2,-1,0,1,2[/tex], and 3. Find the following [tex]y[/tex]-values. Then choose the correct graph of the equation.

[Done] \frac{1}{2} x-4<3 \quad\{7 \leq 3+5

[Done] What is the value of the expression below when [tex]$w=3$[/tex] and [tex]$x=3$[/tex]? [tex]$10 w+5 x$[/tex]