Verify the identity. (sin x + cos x)² = 1+sin 2x
What will be an ideal response?
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Mathematics
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Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 9.2x - 2.1 B. y = 10x - 3 C. y = 9.8x - 2.6 D. y = 9x - 3
Mathematics
Find the area of a sector with the given central angle ? in a circle of radius r.? = 90°, r = 6 cm
A. 18? sq cm B. 1.5? sq cm C. 3? sq cm D. 9? sq cm
Mathematics
Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when 
and 
.
A. 2400 bacteria; 36,000 bacteria B. 7200 bacteria; 583,200 bacteria C. 2400 bacteria; 583,200 bacteria D. 2400 bacteria; 64,800 bacteria
Mathematics
Use Method I to simplify the complex rational expression.
A. (x - 4)(x + 3)
B. 
C. 
D. 
Mathematics