Solve the problem.Find two numbers whose sum is 48 and whose difference is 10.
A. 27 and 21
B. 29 and 19
C. 21 and 31
D. 39 and 9
Answer: B
Mathematics
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Find  figure.png)
for the function f(x, y) = 4x³y - 7xy².
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Mathematics
Solve the right triangle shown in the figure. Round lengths to one decimal place and express angles to the nearest tenth of a degree. 
b = 240, c = 370
A. A = 57°, B = 33°, a = 441 B. A = 49.6°, B = 40.4°, a = 441 C. A = 49.6°, B = 40.4°, a = 281.6 D. A = 33°, B = 57°, a = 281.6
Mathematics
Write the slope-intercept form of the equation for the line passing through the given pair of points.(5, 9) and (0, -8)
A. y = - 
x - 8
B. y = 
x - 8
C. y = - 
x - 8
D. y = 
x - 8
Mathematics
Verify the identity.cos (x - y) - cos (x + y) = 2 sin x sin y
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Mathematics