Write the imaginary numbers using the letter i.
A. i
B. ±50
C. 50i
D. -50i
Answer: C
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Find an upper bound for the magnitude |E| of the error in the linear approximation L to f at the given point over the given region.
at 
R: |x - 1| ? 0.1, |y - 1| ? 0.1
A. |E| ? 0.007 B. |E| ? 0.0057 C. |E| ? 0.0047 D. |E| ? 0.0089
Perform the operation. Write the answer as a fraction in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Let x represent one number and let y represent the other number. Use the given conditions to write a system of nonlinear equations. Solve the system and find the numbers.The difference between the squares of two numbers is 48. Twice the square of the second number subtracted from the square of the first number is 
. Find the numbers.
A. 8 and 4; -8 and 4; 8 and -4 B. 8 and 4; -8 and 4; 8 and -4; -8 and -4 C. 8 and 4; -8 and -4 D. 8 and 4
Graph the inequality by shading the points that do not satisfy it.x + 3y ? 3
A. 
B. 
C. 
D. 