Perform the indicated operations.86.44 + 26.54
A. 2294.1176
B. 112.98
C. 121.79
D. 104.17
Answer: B
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Solve the equation for the specified variable.A = 
h(b + B) for b
A. b = 
B. b = 
C. b = 
D. b = 
Use the product rule to multiply. Assume all variables represent positive real numbers.
? 
A. -2n B. -8n C. 8n D. 6n
If y varies directly as x, find the direct variation equation for the situation.y = 9 when x = 
A. y = x + 
B. y = 
x
C. y = 36x
D. y = 
x
As astronomer observes that at point A on the planet Mercury at a particular time the sun is directly in line with point A and the center of the planet. At the same time, the sun’s rays form an angle of 5 with the vertical at point B on the surface of the planet. She determines that point B is roughly 213 km south of point A. Using this data, what will she calculate Mercury’s diameter to be? (See sketch.)
