GuideFoot - Learn Together, Grow Smarter. Logo

Questions in mathematics

📝 Answered - The ice skating rink charges an hourly fee for skating and $3 to rent skates for the day. Gillian rented skates and skated for 3 hours and was charged $21. Which equation represents the cost, $c(x)$, of ice skating as a function of $x$, the number of hours of skating? A. $c(x)=3 x+3$ B. $c(x)=6 x+3$ C. $c(x)=7 x+3$ D. $c(x)=8 x+3

📝 Answered - The table shows the number of flowers in four bouquets and the total cost of each bouquet. Cost of Bouquets | Number of flowers in the bouquet | Total cost | |---|---| | 8 | $12 | | 12 | $40 | | 6 | $15 | | 20 | $20 | What is the correlation coefficient for the data in the table? A. -0.57 B. -0.28 C. 0.28 D. 0.57

📝 Answered - Which statement best describes how to determine whether [tex]f(x)=x^3+5 x+1[/tex] is an even function? A. Determine whether [tex]-\left(x^3+5 x+1\right)[/tex] is equivalent to [tex]x^3+5 x+1[/tex] B. Determine whether [tex](-x)^3+5(-x)+1[/tex] is equivalent to [tex]x^3+5 x+1[/tex] C. Determine whether [tex]-x^3+5 x+1[/tex] is equivalent to [tex]-\left(x^3+5 x+1\right)[/tex]. D. Determine whether [tex](-x)^3+5(-x)+1[/tex] is equivalent to [tex]-\left(x^3+5 x+1\right)[/tex]

📝 Answered - Find the simplified product: [tex]\sqrt{2 x^3} \cdot \sqrt{18 x^5}[/tex]

📝 Answered - Solve the system with the addition method: $\left\{\begin{array}{l} -9 x+8 y=43 \\ 3 x-8 y=-25 \end{array}\right.$ Answer: $(x, y)=($ $\square$ , $\square$) Enter your answers as integers or as reduced fraction(s) in the form $A / B$.

📝 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 x-3}{5 x-3} \leq 2[/tex] Solve the inequality. What is the solution set? Select the correct choice below and, if necessary, fill in the answer box. A. The solution set is [ ]. (Simplify your answer. Type your answer in interval notation. Type an exact answer, using radicals as needed. Use any numbers in the expression.) B. The solution set is the empty set.

📝 Answered - What is the following quotient? [tex]\frac{\sqrt[3]{60}}{\sqrt[3]{20}}[/tex]

📝 Answered - If f(3x - y, x + y) = x^2 y, then f(3, 2) is equal to?

📝 Answered - The minimum value of \(5x^2 + \frac{5}{x^2}\) is? (where \(x \neq 0\))

📝 Answered - The equation of the tangent to the curve \( y = x + \frac{4}{x^2} \), that is parallel to the x-axis, is? Options: \( y = 0 \) \( y = 1 \)