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Recent Questions

In **Arts** / **High School** | 2025-07-03

[Done] Consider the da Vinci painting in question described in the unit. How are paint samples collected from paintings that are being examined for forgery? Select one: A. A long, thin, sharp needle is used to collect paint flecks from a single color. B. A piece of the painting is cut off with a scissors to examine the paints on the canvas. C. A moist Q-tip is used to collect the paint from the painting. D. None of these techniques are used.

In **Mathematics** / **High School** | 2025-07-03

[Done] What is the solution to the equation $\frac{1}{x}=\frac{x+3}{2 x^2}$? A. $x=-3$ B. $x=-3$ and $x=0$ C. $x=0$ and $x=3$ D. $x=3$

In **Mathematics** / **College** | 2025-07-03

[Done] Which expression can be used to determine the average rate of change in [tex]f(x)[/tex] over the interval [tex]$[2,9]$[/tex]?

In **English** / **College** | 2025-07-03

[Done] A major Renaissance novel about a man who fights imaginary enemies is A. The Prince. B. Don Quixote. C. The Book of the Courtier. D. The Divine Comedy.

In **Mathematics** / **High School** | 2025-07-03

[Done] Evaluate $f(3)$ for the piecewise function: $f(x)=\left[\begin{array}{l} \frac{3 x}{2}+8, x<-6 \\ -3 x-2,-4 \leq x \leq 3 \\ 4 x+4, x>3 \end{array}\right.$ Which value represents $f(3)$? A. -11 B. 9 C. 12.5 D. 18

In **Health** / **College** | 2025-07-03

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

In **Chemistry** / **College** | 2025-07-03

[Done] Consider this reaction: $KOH + HBr \rightarrow KBr + H _2 O$ Which statement is most likely true about HBr? A. It turns blue litmus red. B. It reacts with carbon dioxide to form a carbonate. C. It feels slippery.

In **Mathematics** / **College** | 2025-07-03

[Done] Which of the following describes the transformation of $g(x)=3(2)^{-x}+2$ from the parent function $f(x)=2^x$? A. reflect across the $x$-axis, stretch the graph vertically by a factor of 3, shift 2 units up B. reflect across the $y$-axis, stretch the graph vertically by a factor of 2, shift 3 units up C. reflect across the $x$-axis, stretch the graph vertically by a factor of 2, shift 3 units up D. reflect across the $y$-axis, stretch the graph vertically by a factor of 3, shift 2 units up

In **Mathematics** / **High School** | 2025-07-03

[Done] What is the simplest form of [tex]$\sqrt{1,764}$[/tex]? A. 21 B. 42 C. [tex]$3^2\left(7^2\right)$[/tex] D. [tex]$2^2\left(3^2\right)\left(7^2\right)$[/tex]

In **Mathematics** / **High School** | 2025-07-03

[Done] Which expression is equivalent to $\sum_{n=1}^{60}(2 n-1)^2 $? Check all that apply. $\sum_{n=1}^{60} 4 n^2-4 n-1$ $4 \sum_{n=1}^{\infty} n^2-4 \sum_{n=1}^{\infty} n+\sum_{n=1}^{\infty} 1$ $4 \sum_{n=1}^{\infty} n^2-4 \sum_{n=1}^{\infty} n-\sum_{n=1}^{\infty} 1$ $4 \sum_{n=1}^{\infty} n^2-4 \sum_{n=1}^{\infty} n+60$