Solve the system of equations by the substitution method.9x + 8y = 627x - 5y = 37
A. {(6, 2)}
B. {(5, 2)}
C. {(6, 1)}
D. ?
Answer: C
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Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 144? B. 160? C. 96? D. 192?
Write the first four terms of the geometric sequence with the given values.a1 = 12, r = 
A. 12, 6, 3, 
B. 12, 14, 16, 18
C. 2, 24, 48, 96
D. 12, 3, 
, 
A pair of honest dice is rolled, and the number on each die is noted.What is the probability of rolling a total that is neither 7 nor 11?
A. 
B. 
C. 
D. 
E. none of these
Which of the following is related to the tension inherent in the metaphor, "A plane is a chalkboard that extends infinitely in all directions"?
a. Chalkboards and planes are both flat objects b. Planes are frequently represented in textbooks with trapezoidal drawings c. Chalkboards have thickness, but planes do not d. Chalkboards are outmoded pedagogical devices