Estimate the sum or difference by rounding each number to the nearest thousand.276957618689
A. 18,500
B. 18,400
C. 19,000
D. 18,000
Answer: C
Mathematics
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Find the arc length of the given curve.x =2 cos t, y = 2 sin t, z = 9t, -? ? t ? ?
A. ?
B. 
C. 2?
D. 170?
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Match the given equation with one of the graphs.
- 
= 1
A. 
B. 
C. 
D. 
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Find the coordinates of (a) the vertex and (b) the x-intercepts of the given quadratic function to the nearest hundredth.P(x) = 
x2 + 2.09x - 1.42
A. (a) (-0.38, -2.19) (b) (1.42, 0), (-1.42, 0) B. (a) (-0.44, -1.88) (b) (-1.33, 0), (0.45, 0) C. (a) (-0.44, 1.42) (b) (1.05, 0), (0.71, 0) D. (a) (-1.88, 1.42) (b) There are no x-intercepts.
Mathematics
Decide if the given value for the variable is a solution to the inequality (Y/N).x - 5 ? -1; x = 4
A. Yes B. No
Mathematics