Questions in mathematics

Questions in mathematics

📝 Answered - For the linear inequality $y \leq -x+5$, you would use a solid line and shade above. True False

📝 Answered - Multiply. $\frac{5}{6} \times 18=$

📝 Answered - Given vectors $u =\langle 1, \sqrt{3}\rangle$ and $v =\langle 1,-1\rangle$, how are the vectors related? A. The vectors form an acute angle of approximately $75^{\circ}$. B. The vectors form an acute angle of approximately $81^{\circ}$. C. The vectors form an obtuse angle of approximately $99^{\circ}$. D. The vectors form an obtuse angle of approximately $105^{\circ}$.

📝 Answered - Determine whether the following equation defines y as a function of x. [tex]x^2+y^2=121[/tex] Does the equation [tex]x^2+y^2=121[/tex] define [tex]y[/tex] as a function of [tex]x[/tex]? Yes No

📝 Answered - What is the reflection of $(-2,3)$ in the line $y = -x$? A. $(3,-2)$ B. $(3,2)$ C. $(-3,2)$ D. $(-3,-2)$

📝 Answered - If a scatterplot shows a strong positive linear correlation, then which of the following best describes the trend of the data points? A) Points in a perfectly straight line that rises from left to right B) Points in a perfectly straight line that falls from left to right C) Points that fit fairly close to a straight line that rises from left to right D) Points that fit fairly close to a straight line that falls from left to right

📝 Answered - The areas of three circles are in the ratio 4 : 9 : 25. Find the ratio of their radii. (a) 3 : 3 : 5 (b) 2 : 3 : 5 (c) 5 : 3 : 3 (d) None of these

📝 Answered - Given $h(x)=4x+3$, find $h(4)$.

📝 Answered - The table represents a function. Which value is an output of the function? -6 -2 4 7

📝 Answered - What is the radius of a circle whose equation is $(x+5)^2+(y-3)^2=4^2$? A. 2 units B. 4 units C. 8 units D. 16 units