Find all vectors that are perpendicular to (1, 4, 4, 1) and (2, 9, 8, 2).

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16