Use a proportion to solve the problem. Round to the nearest tenth as needed.A building casts a shadow 18 m long. At the same time, the shadow cast by a 44-cm tall pole is 95 cm long. Find the height of the building.
A. 37.4 m
B. 6.8 m
C. 8.3 m
D. 38.9 m
Answer: C
Mathematics
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Calculate the circulation of the field F around the closed curve C.F = x3y2i + x3y2j; curve C is the counterclockwise path around the rectangle with vertices at 
, and 
A. 0 B. - 9 C. -108 D. 153
Mathematics
Simplify.(-2x3)4
A. 16x12 B. -16x7 C. -16x12 D. 16x7
Mathematics
Perform the indicated operation.(9x2 - 3x - 5) + (-2x2 - 4x + 11)
A. 7x2 - 7x + 6 B. -7x2 + 7x + 6 C. 11x2 - 7x - 16 D. 11x2 - 7x + 16
Mathematics
Multiply. Assume that no radicands were formed by raising negative numbers to even powers.
(5
- 4
)
A. 54
B. 6
- 24
C. 36 - 6
D. 6
Mathematics