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Questions in Grade College

[Free] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Free] Find the absolute value of -0.99.

[Free] Select the correct answer. Which atom or ion is the largest? A. K+ B. K C. Ca D. Ca2+ E. Li

[Free] Solve the equation [tex]$3(x-7)=42$[/tex]

[Free] A parabola can be represented by the equation [tex]$x^2=-$[/tex] [tex]$20 y$[/tex]. What are the coordinates of the focus of the parabola? A. [tex]$(-5,0)$[/tex] B. [tex]$(5,0)$[/tex] C. [tex]$(0,5)$[/tex] D. [tex]$(0,-5)$[/tex]

[Free] Write a function rule using function notation that will transform a geometric figure by a dilation of 3. A. [tex]f(x, y)=(-3 x,-3 y)[/tex] B. [tex]f(x, y)=(3 x, 3 y)[/tex] C. [tex]f(x, y)=(3 x, y)[/tex] D. [tex]f(x, y)=(x, 3 y)[/tex]

[Free] You are working on July 1, 2022, and the legal age to purchase tobacco is 21. Which of the following birth dates must be on the purchaser's ID in order for you to sell them cigarettes? A. On or before July 1, 2002. B. On or before December 1, 1999. C. After June 30, 2001. D. On or before July 1, 2003. E. After July 1, 2001

[Free] Which points lie on the graph of $f(x)=\log _9 x$? Check all that apply. $\left(-\frac{1}{81}, 2\right)$ $(0,1)$ $\left(\frac{1}{9},-1\right)$ $(3,243)$ $(9,1)$ $(81,2)$

[Free] If the cost of 1 kg of Basmati rice is ₹61.95, find the cost of 21.5 kg of Basmati rice.

[Free] Select the correct answer. Consider this function. [tex]$f(x)=6 \log _2 x-3$[/tex] Over which interval is function [tex]$f$[/tex] increasing at the greatest rate? A. [tex]$\left[\frac{1}{8}, \frac{1}{2}\right]$[/tex] B. [tex]$\left[\frac{1}{2}, 1\right]$[/tex] C. [tex]$[2,6]$[/tex] D. [tex]$[1,2]$[/tex]