Use dimensional analysis to convert the unit of length.27,000 pounds to tons
A. 135 T
B. 27 T
C. 270 T
D. 13.5 T
Answer: D
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A person standing 140 centimeters from a mirror notices that the angle of depression from his eyes to the bottom of the mirror is 14°, while the angle of elevation to the top of the mirror is 13°. Find the vertical dimension of the mirror (see the figure). Round to the nearest centimeters.
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Apply the rules regarding the use of significant digits when determining your answer.
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Vertical dimension of mirror = __________ cm
Fill in the blank(s) with the appropriate word(s).
Write the number in scientific notation.88,000,000
A. 8.8 × 107 B. 8.8 × 106 C. 8.8 × 10-7 D. 8.8 × 10-6
Simplify.
A. 
B. 
C. 
D. 
Change the word statement to an equation. Use x as the variable.Twice a number less 4 equals 2.
A. 2(x - 4) = 2 B. 4 - 2x = 2 C. 2x - 4 = 2