Calculate.81.0 × 
+ 6.7 ÷ 
A. 256.7
B. 279.91
C. 44.075
D. 47.475
Answer: C
Mathematics
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Provide an appropriate response.Which of the following are examples of independent events?
A. Two laughs by different people watching the same movie in a theater B. Two people in the same family falling ill in the same week C. Two consecutive wins by a football team D. Two archeological discoveries at different locations, at the same time
Mathematics
Simplify without using a calculator.-2431/5
A. 243 B. -3 C. 81 D. -27
Mathematics
Find the foci of the ellipse whose equation is given.9(x - 1)2 + 36(y + 2)2 = 324
A. foci at (- 3
, -2) and (3
, -2)
B. foci at (1 + 3
, 1) and (1 - 3
, 1)
C. foci at (1 + 3
, -2) and (1 - 3
, -2)
D. foci at (-2 + 3
, 1) and (-2 - 3
, 1)
Mathematics
Find the exact value of the composition.cos-1 
A. 
B. - 
C. 
D. 
Mathematics