Does this represent a function?

y^2 = 16 – 4x^2

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Drag the tiles to the correct boxes to complete the pairs. using the properties of integer exponents, match each expression with the correct equivalent expression.