Questions in Grade High-school

Questions in Grade High-school

📝 Answered - Solve for \( b \) in the equation: \[ 2b^2 + 4b - 2 = 0 \]

📝 Answered - Find the coordinates of point E if C is the midpoint of AE. - A has the coordinates of (-3, 1) - C has the coordinates of (-2, -1)

📝 Answered - The point (3, 7) is reflected in the y-axis. What are the coordinates of the transformed point?

📝 Answered - A basketball player achieves a hang time of 0.773 s in dunking the ball. What vertical height will he attain? The acceleration of gravity is 9.8 m/s\(^2\).

📝 Answered - How many valence electrons do rare earth metals have?

📝 Answered - Is [tex]4xy + 2y = 9[/tex] linear? If yes, write the equation in standard form and determine the x- and y-intercepts.

📝 Answered - What is the time interval between the release of the ball and the time it reaches its maximum height? The acceleration due to gravity is 9.81 m/s\(^2\) and the maximum height is 4.4 m. Neglect air resistance.

📝 Answered - A person walks 25 m west and then 45 m at an angle of 60 degrees north of east. What is the magnitude of the total displacement?

📝 Answered - Prove the identity: \[ \cos(3x) + \cos(x) = 2\cos(2x)\cos(x) \]

📝 Answered - What is \(0.2\) as a whole number?