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Karen D.
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Basic Chemistry
TutorMe
Question:

What volume of 0.2 M HCl must be added to water to create a 250 mL solution of 0.02 M HCl?

Karen D.
Answer:

(250 mL)(0.02 M) / (0.2 M) = 25 mL

Calculus
TutorMe
Question:

Find the derivative of 2/3x^3 - 1/2x^2 + 0.48x - 7

Karen D.
Answer:

2x^2 - x + 0.48

Algebra
TutorMe
Question:

Solve the polynomial: x^2 - 12x + 32 = 0

Karen D.
Answer:

x = - 8 x = - 4

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