Factor the trinomial completely.z2 + 9z + 20
A. (z + 20)(z + 9)
B. (z - 5)(z - 4)
C. (z + 20)(z - 1)
D. (z + 5)(z + 4)
Answer: D
Mathematics
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Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest hundred. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 126,200 ; no B. Estimate: 138,200 ; no C. Estimate: 126,200 ; yes D. Estimate: 138,200 ; yes
Mathematics
Determine whether the geometric series converges or diverges. If it converges, find its sum.  Figure 3.png)
a. 30 b. 36 c. 5 d. Diverges
Mathematics
True or False?
?
?
A. false B. true
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Mathematics