Answer the question(s) based on the following situation: For a population of 2000 students taking the SAT math exam, the scores on the exam have an approximately normal distribution with mean ? = 590 and standard deviation ? = 70.A score of 700 has an approximate standardized value of

A. 10.
B. -1.57.
C. 110.
D. 1.57.
E. none of these


Answer: D

Mathematics

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A. 36 in. × 18 in. × 36 in. B. 18 in. × 18 in. × 36 in. C. 24 in. × 24 in. × 18 in. D. 18 in. × 18 in. × 90 in.

Mathematics

Use the given transformation to evaluate the integral.       Rwhere R is the interior of the ellipsoid 

A. 160? B. 60? C. 80? D. 180?

Mathematics

Solve.209 chocolates are to be packed into boxes each of which will contain 9 chocolates. How many boxes of chocolates will there be? How many chocolates will be left over? 

A. 22 boxes; 2 chocolates left over B. 23 boxes; 2 chocolates left over C. 23 boxes; no chocolates left over D. 22 boxes; 3 chocolates left over

Mathematics

Use the inverse of the coefficient matrix to solve the system of equations.  y + z = 5,3x    -z = 8, 2x + y + 3z = 9; A-1 = -  

A.
B.
C.
D.

Mathematics