- Two angles of a triangle each measure 38 degrees. what is the 3rd angle's measurement?

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I need help with this! What are the intervals on which it is increasing? Math questions. Solve for X 2e^(2x) + 5e^x - 3 = Thank you!
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2e^(2x) + 5e^x = 3 I m not so sure what to do next.? How many months in between hematology testing for a normal person.? How many grams of H2O are required to react with an excess of P2O5 to obtain a theoretical yield of 147 grams of H3PO4?
P2O5 + 3H2O->2H3PO4? Find the indicated intercepts of the graph of the function:
x- intercepts of f(x)= x^2+7 / x^2 +9x +5
The / indicating a fraction.?