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Questions in mathematics

[Answered] Consider this expression. [tex] \left|m^2-7\right|+n^2 [/tex] When [tex]m=-2[/tex] and [tex]n=5[/tex], the value of the expression is $\square$

[Answered] 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]

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

[Answered] Name: Lacky Borley Period: $\qquad$ Write each answer then mark it in the answer column. For each set of problems, there is one earra answer. Write the lenter of this answer $\qquad$ in the corresponding box at the bottom of the page. \begin{tabular}{|l|l|l|l|} \hline \begin{tabular}{l} 1) $-5+2=C$ $7+(-3)=\searrow$ \\ $-4+(-6)=k$ \end{tabular} & \begin{tabular}{l} Answers (V) 4 (C) -3 \\ (A) -8 (K) -10 \end{tabular} & \begin{tabular}{l} 8) $-4-(-9)=$ U \\ $3-7=-4$ \\ $-6+15=$ \end{tabular} & \begin{tabular}{l} Answers (S) 9 (A) -4 \\ (1) 12 (U) 5 \end{tabular} \\ \hline \begin{tabular}{l} 2) $1+(-8)=5$ $-6+(-12)=J$ \\ $-2+9=-7$ \end{tabular} & \begin{tabular}{l} Answers (F) 7 (L) 13 \\ (U) -7 (I) -18 \end{tabular} & \begin{tabular}{l} 9) $1-7=p$ \\ $-5-12=F$ \\ $-20+9=$ \end{tabular} & \begin{tabular}{l} Answers (A) 8 (I) -11 \\ (P) -6 (E) -17 \end{tabular} \\ \hline \begin{tabular}{l} 3) $-7+6= G$ $5+(-8)=N$ \\ $12+13=y$ \end{tabular} & \begin{tabular}{l} Answers (G) 1 (N) -3 \\ (Y) 25 (H) 18 \end{tabular} & \begin{tabular}{l} 10) $-4-3=$ $-4+3=0$ \\ $4-3=$ \end{tabular} & \begin{tabular}{l} Answers \begin{array}{ll} (C) -7 & (R) 1 \\ (I) 7 & (O) -1 \end{array} \end{tabular} \\ \hline & \begin{tabular}{l} Answers (D) 16 (T)- 8 \\ (R) -20 (B) -6 \end{tabular} & \begin{tabular}{l} 11) $-8+18=\backslash]$ $6-19=\zeta$ \end{tabular} & \begin{tabular}{l} Answers (N) 10 (W) -16 \\ (F) 18 (S) -13 \end{tabular} \\ \hline \begin{tabular}{l} 5) $4+(-9)=C$ $-7+(-15)=p$ \\ $-3+12=C$ \end{tabular} & \begin{tabular}{l} Answers (A) 14 (O) 9 \\ (P) -22 (C) -5 \end{tabular} & \begin{tabular}{l} 12) $11+(-2)=$ $-7-4=$ \\n$8-15=$ \end{tabular} & \begin{tabular}{l} Answers (I) 12 (E) 9 \\ (D) -7 (T) -11 \end{tabular} \\ \hline \begin{tabular}{l} 6) $16+(-8)=M$ $-5+20=t$ \\ $-6+6=$ \end{tabular} & \begin{tabular}{l} Answers (M) 8 (T) 15 \\ (S) -4 (W) 0 \end{tabular} & \begin{tabular}{l} 13) $-6+12=G$ $-99-(-99)=k$ \\ $3-5=P$ \end{tabular} & Answers \begin{array}{ll} (P) -2 & (G) 6 \\ (R) 0 & (B) -4 \end{array} \\ \hline \begin{tabular}{l} 7) $-13+(-4)=2$ $-7+2=F$ \\ $14+(-16)=E$ \end{tabular} & \begin{tabular}{l} Answers (F) -5 (Z) -17 \\ (E) -2 (O) 10 \end{tabular} & \begin{tabular}{l} 14) $-20+(-30)=M$ $70-40=1V$ \\ $40-70=t$ \end{tabular} & Answers \begin{array}{l} (Y) -50 (M) 50 \\ \begin{array}{ll} (N) 30 & (I) -30 \end{array} \end{array} \end{tabular} 6) $16+(-8)=M$ $-5+20=$ $-6+6=$ $-6+6=$ $6+6=$ 7) \begin{tabular}{l} $-13+(-4)=2$ $-7+2=F$ \\ $14+(-16)=F$ \end{tabular} Answers (F) -5 (Z) -17 (O) 10 14) $-20+(-30)=M$ Answers (Y) -50 (M) 50 (T) -30 \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|c|c|} \hline 8 & 4 & 11 & 1 & 6 & 9 & 14 & 7 & 10 & 3 & 13 & 5 & 2 & 12 \\ \hline \end{tabular}

[Answered] Solve for $y$. $\frac{y}{5}-34=-22$

[Answered] 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.

[Answered] 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

[Answered] If [tex]$4 x+2=4$[/tex], what is the value of [tex]$2 x+1$[/tex]?

[Answered] Graph the set \{x \mid-5

[Answered] 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. $67 \geq x \geq 73$