Use the intersection-of-graphs method to approximate the solution to the nearest hundredth.0.11(
+ 7x) + 0.09(?x + 6.0) = -7
A. {-3.78}
B. {7.57}
C. {-7.57}
D. {3.78}
Answer: C
Mathematics
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Solve the system of equations using the inverse of the coefficient matrix.3x + 5y = -10-3x - 6y = 9
A. x = -5, y = 1 B. x = 1, y = -5 C. x = -1, y = 5 D. x = 5, y = -1
Mathematics
150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.The number of students scoring 65 points or more is approximately
A. 75. B. 95. C. 65. D. 50. E. none of these
Mathematics
Sketch the graph of the polynomial function.f(x) = x3 + 7x2 + 11x + 5
A. 
B. 
C. 
D. 
Mathematics
Complete the graph by shading the correct region.3x + 5y ? -15
A. 
B. 
C. 
D. 
Mathematics