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In **Mathematics** / **High School** | 2025-08-20

[Answered] $(4 x^2+6 x-10)-(2 x^2-8 x^{-4})$

In **Mathematics** / **College** | 2025-08-20

[Answered] Simplify the following: (a) $[7-3 x+10 y-(x-2 y)]-[5 x+2 y-10]$ (b) $\left(y^2-y-1\right)-\left[\frac{1}{2}\left(x-1+2 x^2\right)\right]$ (c) $a b^2+4 a^2 b-3 a^2 b+8 a b^2+5 a b^2+3 a b^2$ (d) $\left(a^2+b^2-2 a b\right)+\left(2 a^2-b^2+a b\right)-\left(a^2-2 b^2+a b\right)$ (e) $\left(3 p^2-2 p-\frac{1}{2}\right)+\left(1-p^2\right)+\left(p^2-6 p\right)+\left(2 p-\frac{5}{2}\right)$ (f) $\left(2 x^2+2 y^2+2 z^2+3 x u z\right)-\left(x^2+y^2+2 x y z+z^2\right)$ (g) $(3 x+5 y-x+2 y)+(5 x+3 y)-(2 y-x+5 x-3 y)$ (h) $(3 x+2 y-9)+(2 x-6 y+2)-[(4 x-9 y-1)+(-3 x+8 y+7)]$

In **Mathematics** / **College** | 2025-08-20

[Answered] Solve $\frac{y}{5} \geq 3$

In **Mathematics** / **College** | 2025-08-20

[Answered] A scientist studies a group of left-handed people. In the study, there are 10 left-handed males for every 8 left-handed females. a. Complete the ratio table. \begin{tabular}{c|c|c|c|c|c|} & & & 20 & 25 & \ \hline Number of Left-Handed Males & 10 & & & & 24 \end{tabular} b. Describe the ratio relationship by using the addition patterns in the table. If there are 40 left-handed males in the study, how many left-handed females are there?

In **Mathematics** / **High School** | 2025-08-20

[Answered] Given [tex]$\sin \theta=\frac{3}{5}$[/tex] and [tex]$\cos \theta=\frac{4}{5}$[/tex], what is [tex]$\tan \theta$[/tex]? Report your answer in simplest form.

In **Mathematics** / **High School** | 2025-08-20

[Answered] Terry is trying to place a satellite dish on the roof of his house at the recommended height of 30 feet. His house is 32 feet wide, and the height of the roof can be described by the function [tex]$h(x)=-\frac{3}{2}|x-16|+24$[/tex], where [tex]$x$[/tex] is the distance along the width of the house. Where should Terry place the dish?

In **Mathematics** / **College** | 2025-08-20

[Answered] Try to plot, compare, and order the numbers and values of the expressions: [tex]$2 \sqrt{11},-2,5,3 \frac{1}{5}, \pi-3, \sqrt{37}$[/tex]

In **Mathematics** / **College** | 2025-08-20

[Answered] Find the greatest common factor of each set of numbers. 7. 15, 20 18. 30, 48, 60

In **Social Studies** / **College** | 2025-08-20

[Answered] The goals of psychology are the same as the goals of science, except that in psychology, the focus is on and . A. behavior... biological causes B. prediction... thinking C. behavior... cognitive processes D. prediction... biological causes

In **Chemistry** / **High School** | 2025-08-20

[Answered] NaCl has a [tex]$\Delta H_{\text {fus }}=30.2 kJ / mol$[/tex]. What is the mass of a sample of NaCl that needs 732.6 kJ of heat to melt completely? Use [tex]$q=n \Delta H$[/tex].