?Find the first six terms of the power series representing independent solutions of the differential equation
.
?
A. ?
, where
and
are arbitrary constants
B. ?
, where and are arbitrary constants
C. ?
, where and are arbitrary constants
D. ?
, where and are arbitrary constants
E. ?
, where and are arbitrary constants
Answer: A
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A license plate consists of any five capital letters from the ordinary English alphabet (A through Z) except for the letters O, I, and Q.How many of the license plates start with the letter Z and end with the letter W?
A. 233 B. 23 × 22 × 213 C. 215 D. 213 E. none of these
Find the domain and range of the relation.{(-11.54, -8.99), (-8.07,-6.13), (-3.52,-3.07), (5.97, -0.1), (12.13, 4.56)}
A. D = {-11.54, -8.07, -3.52, 5.97, 12.13}; R = {-8.99, -6.13, -3.07, -0.1, 4.56} B. D= {-8.99, -6.13, -0.1, 4.56}; R = {-11.54, -8.07, -3.52, 5.97} C. D = {-11.54, -8.07, 5.97, 12.13}; R= {-8.99, -6.13, -3.07, -0.1} D. D = {-8.99, -6.13, -3.07, -0.1, 4.56}; R = {-11.54, -8.07, -3.52, 5.97, 12.13}
Solve the system, if possible.
?
?
A. 
B. 
C. 
D. 
E. no solution; inconsistent system
Tell whether the sampling strategy will result in a random sample from the population under consideration. If it is not random, explain why it is not.A researcher wishes to survey a random sample of high school teachers within a certain school district. There are 77 high schools in the school district. She lists the schools alphabetically and uses the calculator command 
to pick five numbers between 1 and 77. She visits the five schools corresponding to those numbers and interviews all teachers at each of the five schools.
What will be an ideal response?