What percent of people in the chart in number 7 have a blood pressure between 120 and 159?
A. 30%
B. 0.3%
C. 3.3%
D. you cannot combine the frequencies to find out
Answer: A
Mathematics
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Perform the indicated operation.(3a2 - 5a + 6) + (9a - 5)
A. 7a2 + 1 B. 3a2 + 4a + 1 C. 3a2 + 8a + 11 D. 3a2 + 14a - 1
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Find the inverse matrix of A.A = 
A. 
B. 
C. 
D. 
Mathematics
Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Mathematics
Solve and check your solution.-3x = -12
A. 4 B. 9 C. -9 D. 2
Mathematics