Use the Heron's formula to find the area of the triangle. Round your answer upto one decimal place.
?
a = 3.2, b = 10.9, c = 9
?
A. 7.0
B. 6.4
C. 3.7
D. 45.3
E. 12.6
Answer: E
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Solve the problem.What is the size relationship between the interquartile range and the standard deviation of a data set?
A. The interquartile range can be smaller than, equal to, or bigger than the standard deviation. B. The interquartile range is always equal to the standard deviation. C. The interquartile range is always more than the standard deviation. D. The interquartile range is always less than the standard deviation. E. none of these
Provide an appropriate response.True or false? The equation -x2 = - 144 has no real solutions. If false, give the solution or solutions.
A. False; -12 B. False; 12 and -12 C. False; 12 D. True
Find the power of i.i-13
A. i B. 1 C. -i D. -1
Rationalize the denominator and simplify.
A. 
B. 2
C. 363
D. 