Homework Answers Page 10611

• How did the encomienda system affect the colonists?

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  History

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• If silver has a density of 10.5 ##"g/cm"^3## and gold has a density of 19.3 ##"g/cm"^3##, which would have the greater mass, 5 ##"cm"^3## of silver or 5 ##"cm"^3## of gold?

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  Chemistry

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• Why can a marginal cost curve be "U" shaped?

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  Economics

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• Find the area of the yellow shaded area govern the larger pentagon side ##s=5.5## and area of the smaller pentagon (green) ##A_(pentagon) = 7.59 cm^2##?

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  Calculus

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• What is a barometer?

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  Science

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• How can I write nuclear equations for alpha decay?

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  Chemistry

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• What is the median number for the numbers 4, 8, 10, 5, 9?

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  Statistics

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• What is NADH? What does it do and how and where is it formed?

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  Biology

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• How many liters is 3.75 kiloliters?

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  Chemistry

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• How to use the alternate definition to find the derivative of ##f(x)=sqrt(x+3)## at x=1?

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  Calculus

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• What is DMSO used for in a cell culture where KA" cells are grown and treated with either DMSO, cyclopamine, compound E or Compound E+cyclopamine to test the interaction between Notch and Shh signalling? See DOI: 10.1371/journal.pgen.1002762 , figure 7A

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  Biology

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• What are the two types of carbohydrates, and in what form are they stored in the body?

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  Biology

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• How to learn the valancies of the first 20 elements?

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  Chemistry

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• What is thermochemistry?

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  Chemistry

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• How can you tell if a molecule is polar or not?

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  Chemistry

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• What is salutation ?

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  English

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• What is the difference between an antigen and a pathogen?

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  Psychology

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• How does sunspot and solar flare activity affect the Electromagnetic (EM) Spectrum?

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  Science

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• Find [H+] in an aqueous solution that is 0.50 M in NaNO2 and is 1.40 M in HNO2. For HNO2(aq), Ka = 4.5 × 10–4.?

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  Chemistry

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• When was the U.S. Civil War and how long did it last?

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  History

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• How do you recognize a molecular compound from its formula?

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  Chemistry

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• What is ##E_"cell"^@## of the cell?

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  Chemistry

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• What is the bond used between zinc acetate? How to learn to write such formulas?

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  Chemistry

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• What is an interrogative sentence?

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  English

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• Blood types A, B, O, and AB have percentages 40%, 20%, 30% and 10%. If two individuals are chosen at random, assuming independence, how do you find probability that neither is of blood type A?

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  Statistics

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• Is a mirror's surface transparent, translucent, or opaque? How do you know?

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  Physics

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• What is the difference between animal cell vacuole and plant cell vacuole???

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  Biology

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• How do you convert 1.324 L to mL?

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  Algebra

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• Why are alkyl groups hydrophobic?

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  Chemistry

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• Do diffusion and osmosis require energy?

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  Biology

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• How many lone pairs of electrons are on the ##Xe## atom in ##XeF_6##? A) 0 B) 3 C) 2 D) 1

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  Chemistry

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• What is potassium and iron combined?

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  Chemistry

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• What's the integral of ##int [ ( secx ) / ( 1+ tanx ) ] ^2 dx##?

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  Calculus

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• What is the molecular shape of ICl2^-1 , NO2 & ICl4^-1?

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  Chemistry

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• How many acute angles does a trapezoid have?

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  Geometry

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• What does magnesium do for the body?

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  Psychology

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• What is the difference between electric potential and electrostatic potential energy?

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  Physics

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• How did the Tariff of 1816 highlight the nation's growing sectionalism?

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  History

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• How can you find the slope of the line ##3x-5y=3##?

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  Algebra

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• What do parentheses mean in chemical formulas?

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  Chemistry

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• What are organisms that make their own food called?

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  Biology

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• What organs are located on the left side of your body below the rib cage?

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  Psychology

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• How can we determine whether a compound is oxidant or reductant by its molecular formula?

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  Chemistry

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• What divided by 6 equals 7?

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  Algebra

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• How do you simplify without a calculator the ##sqrt(0.01)##?

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  Algebra

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• How did glasnost and perestroika contribute to the fall of the Soviet Union?

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  History

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• Does uniform circular motion have constant acceleration?

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  Physics

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• What are class boundaries in statistics?

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  Statistics

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• Is 92.3 repeating a rational number?

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  Algebra

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• Why are molecules important?

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  Chemistry

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