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Questions in Grade College

[Homework Help] Simplify each of the expressions below by combining like terms. 4. [tex]$18+21 r-4 r+19 n-3$[/tex] 5. [tex]$-x+6 y-9 x-2 y-4 y$[/tex] 6. [tex]$1.7+8.2 j-3.4+4.7 j$[/tex] 7. [tex]$-4 \frac{1}{2} x+15+\frac{7}{2} x-23$[/tex] 8. [tex]$4 a-7.5 b+9 b-2.1 a$[/tex] 9. [tex]$\frac{3}{8}+15 g-\frac{11}{8} g-13 g+\frac{1}{8}$[/tex]

[Homework Help] Evaluate $6+14 \div 7+4 \bullet 4^2$

[Homework Help] Quadrilateral EFGH is on a coordinate plane. Segment GH is on the line [tex]$2 x+y=2$[/tex], and segment FE is on the line [tex]$2 x+y=4$[/tex]. Which statement proves how segments GH and FE are related? A. They have slopes that are opposite reciprocals of 2 and -2 and are, therefore, perpendicular. B. They have the same slope of 2 and are, therefore, parallel. C. They have slopes that are opposite reciprocals of 0 and undefined and are, therefore, perpendicular. D. They have the same slope of -2 and are, therefore, parallel.

[Homework Help] Has the marrying age of a man changed over the years? The United States Bureau of the Census takes a formal count of everyone in the U.S. every 10 years and has provided the following data that gives the median age of an American man at the time of his first marriage. \begin{tabular}{|l|l|l|l|l|l|l|l|l|l|l|}\hline Year & 1910 & 1920 & 1930 & 1940 & 1950 & 1960 & 1970 & 1980 & 1990 & 2000 \\ \hline Median Age & 25.1 & 24.6 & 24.3 & 24.3 & 22.8 & 22.8 & 23.2 & 24.7 & 26.1 & 26.8 \\ \hline \hline\end{tabular} Determine the average rate of change in median age per year from 1950 to 1990. A. 0.0825 years of age per year B. 0.825 years of age per year C. 1.21 years of age per year D. -1.21 years of age per year

[Homework Help] Which type of OTC medication is typically kept behind the pharmacy counter? A. Skin creams B. Blood pressure medications C. Natural health products D. Nasal decongestants

[Homework Help] Read the sentence and circle the nouns. 1. The air is quite clear today. 2. The dog is barking. 3. She played with her brother. 4. The sun rises in the east. 5. How many lollies do you have? 6. Luna wants to buy some candies. 7. Ben loves strawberry cakes.

[Homework Help] Graph the set \{x \mid-5

[Homework Help] What are the solutions to the absolute value inequality $|x-70| \leq 3$? Remember, the inequality can be written as $-3 \leq x-70 \leq 3$ or as $x-70 \leq 3$ and $x-70 \geq-3$. A. $x \leq 67$ B. $x \leq 73$ C. $67 \leq x \leq 73$ D. $67 \geq x \geq 73$

[Homework Help] Which adobe program is used to navigate through photos before editing?

[Homework Help] Find the critical value z_c necessary to form a confidence interval at the level of confidence c = 0.92.