Questions in mathematics

Questions in mathematics

📝 Answered - How do you solve for \(\sin x \cos 2x + \cos x \sin 2x = 0\)?

📝 Answered - Two dice are rolled. What is the probability that the sum of the numbers rolled is greater than or equal to 5?

📝 Answered - What are the sine, cosine, and tangent of [tex]-495^\circ[/tex] and [tex]-\frac{20\pi}{3}[/tex]?

📝 Answered - What percent of 48 is 2.4?

📝 Answered - The sum of 3 consecutive integers is 90. Find the largest integer if \( x \) is the smallest integer.

📝 Answered - Show your work to solve the equation: \[3r^2 - 16r - 7 = 5\]

📝 Answered - When two fractions are between 0 and \(\frac{1}{2}\), how do you know which fraction is greater? Explain.

📝 Answered - Mera painted equal sections of her bedroom wall to make a pattern. She painted \(\frac{2}{5}\) of the wall white and \(\frac{1}{2}\) of the wall lavender. Write an equivalent fraction for each using a common denominator.

📝 Answered - Anne bought a necklace for each of her three sisters. She paid $7 for each necklace. Suppose she had $9 left. Write and solve an equation to find how much money Anne had initially.

📝 Answered - Point B is on the graph of the function [tex]f(x) = -3x^2[/tex]. If the x-coordinate of point B is 2, which ordered pair gives the location of point B?