Use special right triangles to evaluate the expression.cot 30°
A. 
B. 1
C. 
D. 
Answer: A
Mathematics
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Factor the trinomial completely.4x5 + 32x4 + 48x3
A. x3(4x + 8)(x + 6) B. x3(x + 2)(4x + 24) C. 4x3(x + 2)(x + 6) D. 4x3(x2 + 8x + 12)
Mathematics
Convert to Celsius. Use the formula C = 
(F - 32) or C = 
. Round your answer to the nearest tenth if necessary.85°F
A. 121.0°C B. 185.0°C C. 29.4°C D. 15.2°C
Mathematics
Eliminate the parameter to obtain a Cartesian equation of the curve.x = ln t, y = t, 0 < t < ?
A. y = ln x B. y = ex C. ex = ln y D. x = ey
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 
B. 
C. 
D. 
Mathematics