The figure shows a walkway with a handrail. Angle ? is the angle between the walkway and the horizontal, while angle ? is the angle between the vertical posts of the handrail and the walkway. Assume that the vertical posts are perpendicular to the horizontal.
?
?
Find ? if ? = 55°.
?
? = __________°
Fill in the blank(s) with the appropriate word(s).
35
Mathematics
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Find the indicated cardinal number.Find n(G), given that n(D × G) = 20 and D = {7, 8, 9, 10}.
A. 4 B. 24 C. 9 D. 5
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Provide an appropriate response.Q = Q0 × 2t/Tdouble is the equation for ________.
A. half-life B. doubling time C. growth or decay D. None of the above.
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Find the product. Write the product in rectangular form, using exact values.[4(cos 150° + i sin 150°)] [6(cos 330° + i sin 330°)]
A. 12
+ 12i
B. 24i
C. 24
D. -12 + 12
i
Mathematics
Simplify. Assume that variables can represent any real number.
A. 27k2 B. 3k9 C. -3k2 D. 3k2
Mathematics