Write the algebraic expression described. Recall that two angles are supplementary if their sum is 180 degrees. If one angle measures d degrees comma express the measure of its supplement in terms of d degrees.

A particular train is 25 feet tall. A model of the train was built with a scale of 4 inches which is equal to 5 feet. How tall is the model?

Determine whether the statement is always, sometimes, or never true: 1) A horizontal line is parallel to the x-axis

Sherie says, "There is no rational number between 5/7 and 6/7." Tim replies, "Yes there is because of 11/14 is between them." Is Tim right? A) No, because the denominators are different. B) No, since there is no number between 5 and 6.

Why can't standard deviation be negative?

dentify the type I error and the type II error that correspond to the given hypothesis. The percentage of college students who own cars is equal to 35 %. Identify the type I error. Choose the correct answer below. A.

I thought of a number, divided it by 1 1/2, then added 2 1/2 to the result, then multiplied the sum by 1 2/3. then i subtracted 1 2/3 and got the result 2 5/6. what was my number?

Find the lowest common denominator of and

Last week Bill made a purchase of $56.78 before tax. This week, the same items on sale would have cost him $41.90 before tax. If the tax is 4%, how much could Bill have saved by buying the items on sale (including tax) ?

A student is attempting to simplify the express below. Sample mathematical work is shows. which statement best applies to the sample mathematical work?

Which system of equations has infinitely many solutions?