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.Approximately how many students scored between 450 and 730?
A. 1900
B. 1994
C. 1950
D. 1360
E. none of these
Answer: A
Mathematics
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Write the English sentence as an equation in two variables. Then graph the equation.The y-value is six less than twice the x-value.
A. y = x + 6
B. y = 2x - 6
C. y = x - 6
D. y = 2x + 6
Mathematics
R1 = 100 ê, R2 = 200 ê, R3 = 300 ê. If a voltage source of 60 V is applied to the network, find:
VR , VR and VR
1 2 3
Mathematics
Simplify.92 - 4 ? 2
A. 90 B. 73 C. 154 D. 50
Mathematics
Solve the problem.A rectangular board is 14 ft by 16 ft. How far from the center of the board should the foci be located in order to cut the largest elliptical tabletop from the board?
A. 3.9 ft B. 7.0 ft C. 1.0 ft D. 4.1 ft
Mathematics