Tim is building a bridge for his model railroad. He has 3 sections to fit together to fit together form the bridge span. The pieces are each 4.5 inches long. How long will the bridge be when completed? Explain how you solved the question.

Acidity is measured on the pH scale. The acidity of a substance is given by pH=-logH, where H is the concentration of Hydrogen ions. If a substance has an H value of 0.0008, what is the pH of the substance, rounded to the nearest tenth?

If a quadrilateral has three angles measuring 60',45' and 100' what is the angle of the fourth angle

The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of. 5 minutes. What is the probability that a conversation lasts longer than 3 minutes? 0.043351 0.063748 0.02275 0.095424

You would like to have $4000 in four years for a special vacation following graduation by making deposits at the end of every 6 months in an annuity that pays 7% compounded semiannually.

The graph of a polynomial function has zeros of 3 (multiplicity 2), and - 7 (multiplicity 1). Write a function, in standard form, that could represent this function. How do i find the function for it? and what would it be?

What is the square root of 9764

9 more than one-fourteenth of some number, W can be expressed algebraically as

Find the sum of 3 2/5 + 1 4/5

wo positive integers are 3 units apart on a number line. Their product is 108. Which equation can be used to solve for m, the greater integer? m (m - 3) = 108 m (m + 3) = 108 (m + 3) (m - 3) = 108 (m - 12) (m - 9) = 108

What is a real world situation that could be modeled by dividing two rational numbers