Use technology to calculate det A.A = 
A. -749
B. 20
C. 31
D. -5
Answer: A
Mathematics
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Identify the equation as either an identity or not.cot2x = (csc x - 1)(csc x + 1)
A. Not an identity B. Identity
Mathematics
Use a graphing utility to find the inverse, if it exists, of the matrix. Round answers to two decimal places.
A. 
B. 
C. 
D. 
Mathematics
Find the simple interest. Round your answer to the nearest cent.Principal = $2900Rate = 5.7%Time in years = 
A. $41.33 B. $165.30 C. $413.25 D. $4.13
Mathematics
The length (in feet) of skid marks of a car's tires (when the brakes are applied) is directly proportional to the square of the speed (in miles per hour) of the car. The length of the skid marks is 100 ft when the speed is 50 mi/h. Find the length of the skid marks when the speed is 60 mi/h.
What will be an ideal response?
Mathematics