Evaluate 
at 
.
A. 
B. 
C. 
D. 
E. 
Answer: E
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Sketch the coordinate axes and then include the vectors A, B, and A × B as vectors starting at the origin.u = 2i + j, v = i - 2j
What will be an ideal response?
Find the area of the triangle. If necessary, round the answer to two decimal places.a = 4, b = 5, c = 7
A. 10.01 B. 16.01 C. 9.80 D. 3.46
The measurement is 4,000.0 cm. Find the precision and the greatest possible error of the measurement.
A. The precision of the measurement is 0.001 cm. The greatest possible error of the measurement is 0.005 cm. B. The precision of the measurement is 0.01 cm. The greatest possible error of the measurement is 0.005 cm. C. The precision of the measurement is 0.1 cm. The greatest possible error of the measurement is 0.05 cm. D. The precision of the measurement is 0.001 cm. The greatest possible error of the measurement is 0.0005 cm. E. The precision of the measurement is 0.01 cm. The greatest possible error of the measurement is 0.05 cm.
Use a protractor to measure the angle.
A. 45° B. 90° C. 180° D. 0°