An older sister bragged that she had 16 different outfits. Her younger sibling said, "That's not true. You have two pairs of jeans, two shirts, and two pairs of shoes. There's no way that makes 16 different outfits. You only have eight outfits." Who is correct and why? Show your work and justify your thinking.

What is the value of the digit 1 in the number 13?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %