Find the value of x that satisfies the equation.x + 1
= 3
A. x = 
B. x = 7
C. x = 
D. x = 5
Answer: C
Mathematics
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Mathematics
Solve the equation.
= 5 - 2x
A. 
, 5
B. 5
C. 
, 9
D. 
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Solve the problem.Suppose a cost-benefit model is given by y = 
, where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 35% to the nearest dollar.
A. $538 B. $9400 C. $3290 D. $5061
Mathematics
Provide an appropriate response.If cos ? = 0, what function values of ? are undefined?
A. secant B. tangent and secant C. cotangent and cosecant D. secant and cosecant
Mathematics