The sequence is defined recursively. Write the first four terms of the sequence.a1 = 3 and an = 2an-1 for n ? 2
A. 4, 8, 16, 32
B. 3, 6, 12, 24
C. 3, 5, 4, 3
D. 3, 8, 14, 26
Answer: B
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Answer the question.If n is an even number, then which of the following statements is true?
A. The equation xn - 1 = 0 has an odd number of nonreal roots. B. The equation xn - 1 = 0 has n - 1 roots. C. The equation xn - 1 = 0 has exactly two real roots. D. The equation xn - 1 = 0 has an odd number of real roots.
Round the number to the specified place value.When lava erupts from a volcano, it could reach a temperature of 2412°F. Round this number to the nearest thousand.
A. 2000°F B. 3400°F C. 2400°F D. 3000°F
Refer to right triangle ABC with 
.
?
?
If 
and 
cm, find b.
?
Apply the rules regarding the use of significant digits when determining your answer.
?
__________ cm
Fill in the blank(s) with the appropriate word(s).
Write the fraction as a decimal. If necessary, use repeating decimal notation.- 
A. -0.8
B. -0.
C. -0.08
D. -0.