Answer the question.The interior angles of a polygon are the angles under the points of the polygon.Number of polygon sides:456Sum of interior angles:360°540°720°What is the sum of the interior angles of a regular polygon with 9 sides?
A. 1260°
B. 1170°
C. 1350°
D. 810°
Answer: A
Mathematics
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Find the unit tangent vector of the given curve.r(t) = (8 + 11t5)i + (6 + 2t5)j + (4 + 10t5)k
A. T(t) = 
i + 
j + 
k
B. T(t) = 
i + 
j + 
k
C. T(t) = 11i + 2j + 10k
D. T(t) = 
i + 
j + 
k
Mathematics
Multiply.(-7x2)(-8x6)(-2x4)
A. 112x12 B. -112x48 C. 112x48 D. -112x12
Mathematics
Write the binomial expansion of the expression.(3x + 5)4
A. (9x2 + 15x + 25)4 B. 405x4 + 2700x3 + 1350x2 + 7500x + 625 C. 81x4 + 540x3 + 1350x2 + 1500x + 625 D. 81x3 + 540x2 + 1350x + 1500
Mathematics
Solve.Given that loga11 = 2.398, and loga5 = 1.609, find loga
.
A. 4.007 B. 1.49 C. 0.789 D. -0.788
Mathematics