Find the formula for df-1/dx.f(x) = 
x + 
A. x - 
B. 3
C. 
D. 3x - 
Answer: B
Mathematics
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Solve the system by addition.x + 6y = 122x + 7y = 14
A. {(-2, 0)} B. ? C. {(0, 2)} D. {(1, 1)}
Mathematics
Identify the fraction represented by the shaded region.
A. 
B. 
C. 
D. 
Mathematics
Use a formula to write an equation for each problem, then solve it.An artist decided to produce a painting with a width of 19 inches and a perimeter of 114 inches. What is its length?
A. length = 19 in. B. length = 57 in. C. length = 38 in. D. length = 76 in.
Mathematics
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.(4a1/7b5/7)3
A. 64(ab)15/7 B. 64a3/7b15/7 C. 12a3/7b5/7 D. 4a3/7b15/7
Mathematics