Construct a frequency polygon.
A. Frequency
| Hours of bulb life |
B. Frequency
| Hours of bulb life |
Answer: A
Mathematics
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Evaluate the derivative of the given function at the given point.y = x2 - x; (2, 2)
A. 6 B. 4 C. 3 D. 2
Mathematics
Multiply.(3
)(
)(4
)
A. 12
B. 12ab
C. 7
D. 7ab
Mathematics
Solve the equation.x2 = -7x
A. {7} B. {0, 7} C. {0, -7} D. {-7}
Mathematics
The recommended safety angle of a ladder against a building is 71 o. A 
-m ladder will be used. How high up on the side of the building will the ladder safely reach? (See the illustration.) Round your answer to the appropriate number of significant digits.
A. 11 m B. 9.5 m C. 8.9 m D. 7.8 m E. 8.4 m
Mathematics