Solve. Check for extraneous solutions.
+ 
= -1
A. 
B. {1}
C. {0}
D. ?
Answer: D
You might also like to view...
?Joe changes his socks twice a day. He has 54 socks, all of the same design and color in his sock drawer. If he uses all the socks in his drawer, will he have perfect enough socks for a given number of day? ?
A. ?yes, 2 divides 54. B. yes, 4 socks a day over 13 days uses up all the socks. C. ?no, 4 does not divide 54, since he needs 4 socks every day. D. ?yes, 2 divides 54, since he needs two pairs of socks a day. E. ?no, 4 does not divide 54, and he will need socks for 13 days. He will run out before then.
Between 1995 and 2005, each year the number of Internet domain hosts was 1.41 times the number of hosts in the preceding year. In 1995 the number of hosts was 8.7 million.
?
A: Explain why the number of domain hosts was an exponential function of time over the period from 1995 to 2005..
?
B: Write a formula that gives the number D, in millions, of domain hosts t years after 1995.
?
?
C: Make a graph that shows the growth of domain hosts from 1995 to 2005, that is, for 
to 
.
?
D: According to this model, when did the number of domain hosts reach 23 million? Round your answer to two decimal places.
What will be an ideal response?
Find the product of the complex numbers. Leave answer in polar form.z1 = 5(cos 20° + i sin 20°)z2 = 4(cos 10° + i sin 10°)
A. 9(cos 30° + i sin 30°) B. 20(cos 200° + i sin 200°) C. 20(cos 30° + i sin 30°) D. 9(-cos 200° - i sin 200°)
Identify a fraction or mixed number that represents the shaded part of the figure.
A. 
B. 
C. 5
D. 