Solve using the elimination method. If the system has no solution or an infinite number of solutions, state this.-4x + 2y = 120x - 10y = -5
A. 
B. 
C. No solution
D. Infinite number of solutions
Answer: D
Mathematics
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Find an equation of variation in which the following are true.y varies jointly as x and z; y = 250 when x = 25 and z = 15
A. y = 
xz
B. y = 
C. y = 93750xz
D. y = 
Mathematics
Evaluate the line integral.
; C is the curve x = t2 - 1, y = 6t, 0 ? t ? 1
A. 26
B. 14
C. 
D. 72
Mathematics
Find the area of the region enclosed by 
, 
, and the y-axis.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Use the appropriate identity to find the indicated function value. Rationalize the denominator, if applicable. If the given value is a decimal, round your answer to three decimal places.csc ?, if sin ? = -0.067
A. -14.925 B. -7.463 C. 7.463 D. 14.925
Mathematics