a store manager sends an email survey to customers who have registered at the store's websites. Why is this survey biased?

True or false. 1) the slope of the line passing through (-10,3) and (-2,5) is m=3/10

suppose you are trying to increase your coin collection to at least 500 coins. How many coins do you need if you already have a collection of 375 coins?

Use the quadratic formula to solve the equation x2+7x

What possible restrictions exist on domains and ranges of arithmetic sequences?

What is the answer 2^2-4+6-5-2

Carla has a credit card that uses the average daily balance method. For the first 15 days of a 31-day billing cycle, her balance was $2560, but then she paid off her entire balance and didn't make any new purchases.

The expression x^2 + x + b is a perfect square trinomial. What is the value of b?

Solve the equation by factoring: 3x^2 + 22x - 16 = 0

If a 10 foot piece of electrical tape has 0.037 feet cut from it, then what is the new length of the tape?

Josue has to solve the equation - 4x+8=2x+10. He notices he can first divide every term by factor of 2 to make the equation easier to solve. Using Josue's strategy, which equation will result?