Questions in mathematics

Questions in mathematics

📝 Answered - Perform the following operation and express the answer in proper scientific notation: [tex]\frac{9.0 \times 10^{-5}}{2.0 \times 10^{-8}}=[/tex] Enter the coefficient in the green box and the exponent in the yellow one. Coefficient (green) Exponent (yellow)

📝 Answered - Devon wants to write an equation for a line that passes through 2 of the data points he has collected. The points are $(8,5)$ and $(-12,-9)$. He writes the equation $7x - 10y = 3$. Is this a good model? Explain your reasoning.

📝 Answered - Write the equation of the line that passes through the origin $(0,0)$ and has a slope of $-\frac{3}{4}$ in slope-intercept form.

📝 Answered - No page times or marks allowed. Redetermine lessons 1, 2, and 3. Active the following that determine the degree of linear correlation: Answers: See the radiations to answer Questions 2 and 3.

📝 Answered - Does changing the compound inequality $x>-3$ and $x<3$ from "and" to "or" change the solution set? Explain.

📝 Answered - Which exponential functions have been simplified correctly? Check all that apply. [tex]f(x)=5 \sqrt[3]{16}^x=5(2 \sqrt[3]{2})^x[/tex] [tex]f(x)=2.3(8)^{\frac{1}{2} x}=2.3(4)^x[/tex] [tex]f(x)=81^{\frac{x}{4}}=3^x[/tex] [tex]f(x)=\frac{3}{4} \sqrt{27}^{\dot{x}}=\frac{3}{4}(3 \sqrt{3})^x[/tex] [tex]f(x)=(24)^{\frac{1}{3} x}=2(\sqrt[3]{3})^x[/tex]

📝 Answered - Find the value of [tex]\frac{6!7!-6!5!}{5!4!}[/tex]

📝 Answered - Given that [tex]$\sqrt{3}=1.732$[/tex] and without using a calculator, evaluate [tex]$\sqrt{27}(\sqrt{243}+\sqrt{16})$[/tex]

📝 Answered - $\left(a+\frac{1}{a^2}\right)^2+\left(a-\frac{1}{a}\right)^2$

📝 Answered - Express 15% as a fraction in its simplest form.