Solve the problem.Students in English class must have an average between 80% and 90%, inclusive, of all work to receive a grade of B. Stan has 76% on homework, 81% on quizzes, and 89% on his research paper. What range of scores on the test would give him a B?
A. 74% or better
B. 90% or better
C. 65% or better
D. 79% or better
Answer: A
Mathematics
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Rwhere R is the parallelepiped bounded by the planes 
A. 24
B. 48
C. 
D. 
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Factor the polynomial completely.9x4 + 12x2 + 4
A. (9x2 + 2)(x2 + 2) B. (3x2 + 1)(3x2 + 4) C. (3x2 - 2)(3x2 - 2) D. (3x2 + 2)(3x2 + 2)
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Identify the matrix as a regular stochastic matrix, absorbing stochastic matrix, or neither.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Multiply. 
A. 12.276 B. 122.76 C. 1227.6 D. 12,276
Mathematics