Provide an appropriate response.Evaluate 3(2.52 - 3) - 
- (9 - 8)2 following the order of operations using a calculator.
A. -40.85
B. 5.4
C. 2.65
D. 7.15
Answer: D
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Solve the problem. Round to an appropriate number of significant digits.In one study the maximum heart rates of conditioned athletes were examined. A group of athletes was exercised to exhaustion. Let x represent an athlete's heart rate five seconds after stopping exercise and y represent an athlete's heart rate ten seconds after stopping exercise. It was found that the maximum heart rate H for these athletes satisfied the following two equations. H = 0.491x + 0.468y + 11.2 H = -0.981x + 1.872y + 26.4If an athlete had maximum heart rate H = 155, determine the value of x graphically.
A. x = 151.9 B. x = 152.2 C. x = 151.1 D. x = 151.6
Find the exact solutions to the quadratic equation, using a method of your choice.x2 + 2x - 8 = 0
A. -4, 2 B. 4, 2 C. 4, -2 D. -4, 1
Find the area of the triangle. If necessary, round the answer to two decimal places.a = 14, b = 32, c = 26
A. 181.99 B. 177.99 C. 5280.01 D. 3219.69
Find all solutions of the equation in the interval [0, 2?).tan 2x = -1
A. 
, 
B. 
, 
, 
, 
C. 
, 
D. 
, 
, 
, 