Determine whether the equation is an identity, a conditional equation, or an inconsistent equation.5x + 3 - 7x + 4 = 2x - 4x + 4
A. Identity
B. Conditional equation
C. Inconsistent equation
Answer: C
Mathematics
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Solve the problem.The function A = A0e-0.0077x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 800 pounds of the material are placed in the vault, how much time will need to pass for only 588 pounds to remain?
A. 45 years B. 80 years C. 40 years D. 50 years
Mathematics
Find the unknown value.63 is 70% of what number?
A. 9 B. 900 C. 44.1 D. 90
Mathematics
Graph.y = -(x + 2)2 + 5
A. 
B. 
C. 
D. 
Mathematics
Draw the angle.- 
A. 
B. 
C. 
D. 
Mathematics