Graph the line containing the point P and having slope m.P = (3, 7); m = 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve.A railroad tunnel is shaped like a semi-ellipse. The height of the tunnel at the center is 45 ft and the vertical clearance must be 30 ft at a point 5 ft from the center. Find an equation for the ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Find the area of a triangle with sides of length 12 and 22 and included angle 10°.
(a) 31.9 (b) 21.9 (c) 33.9 (d) 44.9 (e) 22.9
Mathematics
Find an equation of variation in which the following are true.y varies directly as x and inversely as z, and y = 10 when x = 2 and z = 4.
A. y = 
B. y = 23xz
C. y = 
D. y = 
Mathematics
Use both properties of equality to solve the equation.
- 4 = 1
A. 18 B. -20 C. -18 D. 20
Mathematics