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Questions in mathematics

📝 Answered - Using the quadratic formula to solve $4 x^2-3 x+9=2 x+1$, what are the values of $x$? $ \frac{9 \pm \sqrt{158}}{18}$ $ \frac{5 \pm \sqrt{153}}{8}$ $ \frac{5 \pm \sqrt{103 i}}{8}$ $ \frac{1 \pm \sqrt{153}}{6}$

📝 Answered - Which point is on the graph of $f(x)=2 \cdot 5^x$? A. $(0,10)$ B. $(0,0)$ C. $(1,10)$ D. $(10,1)$

📝 Answered - Find the sum. [tex]\frac{3}{2}+\frac{3}{5}+\frac{3}{7}=[/tex] A. 1 B. 1 C. 4 D. 1

📝 Answered - Change [tex]$\frac{1}{4}$[/tex] to a decimal, then a percent.

📝 Answered - What is the following quotient? $\frac{3 \sqrt{8}}{4 \sqrt{6}}$

📝 Answered - The diameter of a circle has endpoints $(-3,-10)$ and $(4,-6)$. What is the equation of the circle? $\left(x+\frac{1}{2}\right)^2+(y-8)^2=\frac{65}{4}$ $\left(x-\frac{1}{2}\right)^2+(y+8)^2=\frac{65}{4}$ $\left(x+\frac{1}{2}\right)^2+(y-8)^2=65$ $\left(x-\frac{1}{2}\right)^2+(y+8)^2=65

📝 Answered - ACTIVITY Do the activity with a partner. One of you will perform the paper folding while the other will do the recording in the table. Start with a big square from a piece of paper. Assume that the area of the square is 64 square units. 1. Fold the four corners to the center of the square and find the area of the resulting square. 2. Repeat the process three times and record the results in the table below. Square Area 1 2 3

📝 Answered - Solve the rational inequality and graph the solution set on a real number line. Express the solution set in interval notation. [tex]\frac{(8-2 x)}{2 x+3} \leq 0[/tex] Solve the inequality. What is the solution set? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The solution set is [ ]. (Simplify your answer. Type your answer in interval notation. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression.) B. The solution set is the empty set.

📝 Answered - Find the $y$-intercept of the line represented by the equation below. $-12=-2 x-4 y$

📝 Answered - You took $[101 / 4] mg$ of medication in the morning and $[151 / 3] mg$ in the evening. How many mg of the medication did you take for the day? $265 / 12$ $25^7 / 12$ $26^{1 / 2}$ $25^{1 / 2}$