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Answers by Regina G.

Well, I'm sure you know that you need to draw out the triangle and the altitudes of the triangle.    The orthocenter is where the lines of altitude intersect. If they don't intersect inside the triangle, you need to extend the lines with a ruler or straightedge, until they do.    Even...

Sorry this is late in coming, Nadeshiko. When is oxygen the terminal electron acceptor? At the end of the ETC, which occurs after what cycle?   Whether they use H2 or H2SO3 to get everything started doesn't matter What matters is which method the bacterium uses to extract energy...

Math Help??????? (answer)

I answered on the other question you asked. Double-check the formula you put here, as I think it needs a plus sign, in the parentheses.    Also, use the other problem to guide you through this one. I hope you'll share your work, so we can help you through this one if you get stuck...

14x^2y - 9x^y= (answer)

As it is written, this is simplified. You cannot combine any of these terms, unless you're given values for the variables.

Math Help??????? (answer)

You need to rearrange to isolate the variable t.   Starting with the formula A = P (1+r/n)nt   Isolate term with unknown exponent A/P = (1+r/n)nt   It might be useful to plug the values in, at this step, to simplify the work.   (1700+500)/1700...

Helping Son (answer)

Hi, Dana,   I'm sorry that this is late in coming, so I hope you have found an answer, or that this will help.    To find the Ksp, generally, you'll balance the equation, then multiply the concentrations of the reactants, each raised to the power with the same value...

I posted an answer, and I bet others have, as well, but mine keeps disappearing and reappearing. O.O  When I go to My Questions and Answers, this problem shows up, but not always does my answer.  How would I report this problem?

Opposite sides are congruent, opposite angles are congruent, and the consecutive angles are supplementary. Read if you need more detail: If this is a true parallelogram, both sets of opposite sides and angles must be equal. If one set is not equal, the lines will not be parallel...