Find the measure of ?x in the triangle.
A. 105°
B. 210°
C. 30°
D. 40°
Answer: C
Mathematics
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Find a1, r, an, n, or Sn for the geometric sequence, as instructed.a1 = 10, r = 
, an = 5; Find n.
A. 2 B. 4 C. 3 D. 1
Mathematics
Solve the problem.The total solar radiation H (in W/m2) on a certain surface during an average clear day is given by H = 
(-6 < t < 6),where t is the number of hours from noon. Find the derivative of H with respect to t.
A. 
= - 
B. 
= - 
C. 
= 
D. 
= - 
Mathematics
Write percent as decimal.800%
A. 80 B. 8 C. 800 D. 0.8
Mathematics
Use a graph or a table to find the limit.
A. 1 B. ? C. 0 D. 4
Mathematics