Fraction symbols can usually be safely introduced by which grade level?
Fraction symbols can usually be safely introduced by which grade level?
ANSWER:
d
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The least likely source of toxins from flame retardants in a child care environment would be a. carpeting
b. textiles. c. construction materials. d. air fresheners. e. nursing pillows.
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Demographics is
a. a form of democracy. b. a type of economic forecasting. c. the scientific study of the characteristics of human population. d. a natural science.
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If students have learned a word so that they are able to use the word in speaking
and writing, they know the word at the a. production level. b. acquainted level. c. independent level. d. established level.
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For 
= .05 and df = 4, the critical value for a chi-square statistic would be ______.
a. 5.989 b. 7.779 c. 7.815 d. 9.488
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