Factor the trinomial, or state that the trinomial is prime.10x2 + 21x + 9
A. (2x - 3)(5x - 3)
B. (2x + 3)(5x + 3)
C. (10x + 3)(x + 3)
D. prime
Answer: B
Mathematics
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Find the sum.Find the sum of the first 30 terms of the arithmetic sequence: 7, 14, 21, 28, . . .
A. 3360 B. 217 C. 3265 D. 3255
Mathematics
In the sequence below each number (other than the first two numbers) is the sum of the previous two numbers. Use this rule to find the missing terms of the sequence.1, 6, 
, 13, 20, 
, 53
A. 6, 27 B. 6, 21 C. 1, 39 D. 7, 33
Mathematics
Establish the identity.tan 
= 
What will be an ideal response?
Mathematics
Identify the number as real, complex, pure imaginary, or nonreal complex. More than one of these descriptions may apply.
A. Complex, pure imaginary, nonreal complex B. Complex C. Real, complex D. Nonreal complex
Mathematics