Questions in mathematics

Questions in mathematics

📝 Answered - The simplified form, with no quotients, of $(10+\sin t)^2+\cos ^2 t$ is $\square$ .

📝 Answered - What is $4,500,000,000$ in scientific notation? A. $45 \times 10^{-7}$ B. $4.5 \times 10^9$ C. $4.5 \times 10^{-9}$ D. $4.5 \times 10^8$

📝 Answered - Solve the system of equations. [tex]\begin{array}{l} y=5 x+32 \\ y=-4 x-22 \end{array}[/tex] A. (6,2) B. (-6,-2) C. (-6,2) D. No solution

📝 Answered - What is the equation of the line that is perpendicular to and has the same $y$-intercept as the given line? $y=\frac{1}{5} x+1$

📝 Answered - Combine and simplify the following radical expression: $(3 \sqrt{y})^2$

📝 Answered - The law of cosines is used to find the measure of [tex]$\angle Q$[/tex]. [tex]$\begin{array}{l} 24^2=20^2+34^2-2(20)(34) \cos (Q) \\ 576=400+1156-(1360) \cos (Q) \\ 576=1556-(1360) \cos (Q) \\ -980=-(1360) \cos (Q) \end{array}$[/tex] To the nearest whole degree, what is the measure of [tex]$\angle Q$[/tex]? A. [tex]$44^{\circ}$[/tex] B. [tex]$49^{\circ}$[/tex] C. [tex]$54^{\circ}$[/tex] D. [tex]$59^{\circ}$[/tex]

📝 Answered - Solve for $x$. $5(x-10)=30-15 x$ A. $x=1$ B. $x=4$ C. $x=5$ D. $x=8$

📝 Answered - What is an x-intercept of the quadratic function [tex]f(x)=(x-4)(x+2)[/tex]? A. (-4,0) B. (-2,0) C. (0,2) D. (4,-2)

📝 Answered - Which equation represents the number of inches (i) a snail crawls if it crawls 7.6 inches per hour ($h$)? How far will the snail crawl in 8 hours? A) $h=7.6 i, 1.05$ inches B) $i=7.6 h, 1.05$ inches C) $i=7.6 h, 60.8$ inches D) $h=7.6 i, 60.8$ inches

📝 Answered - Find the weight, in ounces, of 327 g of cereal. Round to