Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. {(-1, 2)}
B. {(0, -2)}
C. {(2, -1)}
D. {(-2, 1)}
Answer: A
Mathematics
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Solve the following system of equations.
Round your answers to two decimal places.
What will be an ideal response?
Mathematics
Evaluate the given function.f(x) = x3, f(-5)
A. -5x3 B. -15 C. -125 D. x-15
Mathematics
Find the power of i.i9
A. -1 B. 1 C. -i D. i
Mathematics
Complete the following for the given f(x). (i) Find f(x + h). (ii) Find the difference quotient of f and simplify.f(x) = x2 - 7x
A. (i) x2 + 2xh + h2 - 7x - 7h (ii) 2xh + h - 7x B. (i) x2 + h2 - 7x - 7h (ii) h - 7 C. (i) x2 + 2xh + h2 - 7x + h (ii) 2x + h + 1 D. (i) x2 + 2xh + h2 - 7x - 7h (ii) 2x + h - 7
Mathematics