Solve the system graphically.x2 + y2 = 7y = 
A. ?(-2.29, -1.32) and ?(2.29, 1.32)
B. ?(-2.13, -1.57) and ?(1.76, -1.98)
C. ?(-1.76, -1.98) and ?(2.13, -1.57)
D. ?(-2.13, 1.57) and ?(1.76, 1.98)
Answer: D
Mathematics
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Evaluate the expression with the given replacement values.7x2; x = 3
A. 147 B. 441 C. 63 D. 42
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Find all specified roots.Cube roots of 1.
A. 1, - 
+ 
i, - 
- 
i
B. -1, 1
C. 1, 
+ 
i, - 
+ 
i
D. 1, 
- 
i, - 
- 
i
Mathematics
Answer the question.Which one of the equations below matches the graph?
A. y = 3 cos
B. y = 3 sin
C. y = -3 sin(4x)
D. y = 3 cos(4x)
Mathematics
Determine the accuracy of the measurement; that is, give the number of significant digits for the measurement.
m
Fill in the blank(s) with the appropriate word(s).
Mathematics