?Which of the following is true?(hint: n! = n(n - 1)(n - 2)...1)
?
A.
?
B.
?8! = 4!(4!)
C.
?3 is a factor of 7!
D.
?a and b
E.
?a and c
Answer: E
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Solve the polynomial inequality.x4 - 80x2 + 1024 < 0
A. (-?, -4) ? (4, ?) B. (-8, 8) C. (8, -4) ? (4, -8) D. (-8, -4) ? (4, 8)
Solve the problem.Sound levels in decibels can be computed by f(x) = 10log(x/So), where x is the intensity of the sound in watts per square meter and So = 1.00 x 10-12 watt/m2. A certain noise produces 9.89 x 10-5 watt/m2 of power. What is the decibel level of this noise? (Round to the nearest decibel)
A. 184 decibels B. 80 decibels C. 8 decibels D. 70 decibels
Solve the problem.Identify the scatter diagram of the relation that appears linear.
A. 
B. 
C. 
D. 
Use the Heron's formula to find the area of the triangle. Round your answer upto two decimal places.
?
a = 1, b = 
, c = 
?
A. 0.65 B. 0.09 C. 2.29 D. 0.66 E. 0.50