Indicate whether the matrix is in row-reduced form. Answer yes or no.
yes
Mathematics
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Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.4, -12, 36, -108, 324, . . .
A. yes, - 
B. no
C. yes, 12
D. yes, -3
Mathematics
Solve the equation. Express irrational answers in exact form and as a decimal rounded to 3 decimal places.ln x + ln (x + 4) = 1
A. 
? 2.326
B. 
? 0.592
C. 
? -4.592
D. -4 + 
? 1.184
Mathematics
Find the area of the SAS triangle ABC. If necessary, round the answer to two decimal places.A = 83°, b = 9 cm, 
cm
A. 3.29 sq cm B. 53.60 sq cm C. 27.01 sq cm D. 26.80 sq cm
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. y
B. y2
C. 
D. y4
Mathematics