Solve the problem.Sue can sew a precut dress in 3 hours. Helen can sew the same dress in 2 hours. If they work together, how long will it take them to complete sewing that dress? Give your answer rounded to one decimal place, if necessary.
A. 2.5 hr
B. 1.2 hr
C. 5 hr
D. 1.8 hr
Answer: B
Mathematics
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Provide an appropriate response.Solve for x: 4x-1 = 16
Fill in the blank(s) with the appropriate word(s).
Mathematics
Complete the identity.csc2 x sec x = ?
A. sec x + csc x B. sec x - csc x cot x C. sec x + csc x cot x D. csc x cot x - sec x
Mathematics
Multiply.
? 
A. 10z
B. 
C. 
D. 
Mathematics
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.x + y = 5x + y = -4
A. {(5, -4)}
B. {(0, 1)}
C. {
x + y = 5}
D. ?
Mathematics