Answer the question asked. When necessary, round to the nearest hundredth.A painter can finish painting a house in 3 hours. Her assistant takes 5 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 2 hr
B. 
hr
C. 4 hr
D. 1
hr
Answer: D
Mathematics
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Find the angles of the trignometric values in degrees. ? represents the unknown angle measure. sin ? = 0.23
A. 13° B. 16.0° C. 13.0° D. 16°
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Provide an appropriate response.A student argued that it is impossible to use the substitution method to determine if a system of equations has no solution or an infinite number of solutions. Is the student correct?
Fill in the blank(s) with the appropriate word(s).
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Simplify the expression. Assume that all variables are positive when they appear.
A. -4x12y18 B. 16x8y12 C. -4x8y12 D. 4x8y12
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Solve.0.8(5x + 15) = 2.7 - (x + 3)
A. - 
B. - 
C. 
D. 
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