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Questions in mathematics

📝 Answered - What values of $c$ and $d$ make the equation true? $\sqrt[3]{162 x^c y^5}=3 x^2 y\left(\sqrt[3]{6 y^d}\right)$ A. $c=2, d=2$ B. $c=2, d=4$ C. $c=6, d=2$ D. $c=6, d=4$

📝 Answered - Rewrite without rational exponents, and simplify, if possible. $\left(a^2 b^2\right)^{\frac{1}{9}}$

📝 Answered - Evaluate $-3 x^2-y^3$ when $x=1$ and $y=-4$

📝 Answered - If you wanted to make the graph of $y=6 x+7$ less steep, which equation could you use? A. $y=10 x+7$ B. $y=2 x+7$ C. $y=-6 x+7$ D. $y=6 x+4

📝 Answered - Check the definition below. Present another real-life situation to explain the meaning of functions. The area A of a circle depends on the radius r of the circle. The rule that connects r and A is given by the equation Ar². With each positive number r there is associated one value of A, and we say that A is a function of r.

📝 Answered - Complete the point-slope equation of the line through $(-5,4)$ and $(1,6)$. Use exact numbers. $y-6=$ $\square$

📝 Answered - $\begin{array}{ll} n_1=16 & n_2=22 \\s_1^2=4.875 & s_2^2=1.449\end{array}$ ces is given by $\left(\frac{s_1^2}{s_2^2} \cdot \frac{1}{F_{\frac{a}{2}}}\right)<\frac{\sigma_1^2}{\sigma_2^2}<\left(\frac{s_1^2}{s_2^2} \cdot \frac{1}{F_{\left(1-\frac{a}{2}\right)}}\right)$ confidence $c=1-\alpha$ and the $F$-distribution with $n_1$ the ratio of the population variances. Round the endpo Lower Endpoint = $\square$

📝 Answered - Find the slope of the line that passes through the points $(2,-5)$ and $(7,1)$. Step 1: Choose $\left(x_1, y_1\right)$. $x_1=$ $\square$ , $y_1=$ $\square$ Step 2: Identify $\left(x_2, y_2\right)$. $x_2=$ $\square$ , $y_2=$ $\square$

📝 Answered - Which expression is equivalent to $\frac{2 n}{n+4}+\frac{7}{n-1}$ if no denominator equals zero? A. $\frac{2 n^2+5 n+28}{(n+4)(n-1)}$ B. $\frac{2 n^2+5 n+4}{(n+4)(n-1)}$ C. $\frac{2 n^2+6 n+28}{(n+4)(n-1)}$ D. $\frac{2 n^2+6 n+4}{(n+4)(n-1)}$

📝 Answered - Which of the following expressions is equivalent to $5 x-4-8 x+10$? A. $-3 x+6$ B. $-3 x-6$ C. $-3 x+14$ D. $-3 x-14$