Solve by the substitution method. x + y = 92x + 2y = 18
A. (9, 2)
B. (9, 0)
C. Infinite number of solutions
D. (0, 0)
Answer: C
Mathematics
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Write a word name for the given decimal notation.2.8
A. Two and eight thousandths B. Two and eight hundredths C. Two and eight millionths D. Two and eight tenths
Mathematics
Provide an appropriate response.Only one of the following augmented matrices of a linear system is in a reduced form. Choose the matrix that is in reduced form.
A. 
B. 
C. 
D. 
Mathematics
Find the equation of the tangent line to the curve when x has the given value.f(x) = x2 + 5x; x = 4
A. y = 13x - 16
B. y = - 
+ 
C. y = 
+ 
D. y = -39x - 80
Mathematics
Divide.(2r3 - 3r2 - 2r - 21) ÷ (r - 3)
A. 2r2 - 3r - 7
B. 2r2 + 3r + 
C. r2 + 7r + 3
D. 2r2 + 3r + 7
Mathematics