Write a word name for the number in the sentence.Scientists were predicting the demise of the space colony as the population approached 600,040,000.
A. Six hundred million, forty hundred
B. Six hundred million, forty thousand
C. Six hundred forty million
D. Six hundred billion, forty million
Answer: B
Mathematics
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 3, ? < ? < 
Find tan 
.
A. 
B. 
C. 
D. 
Mathematics
Use a half-angle formula to find the exact value of the expression.cos 
A. 
B. - 
C. 
D. - 
Mathematics
Use the distributive property to write an equivalent expression.0.8(2x + 5)
A. 1.6x + 5 B. 1.6x + 4 C. 2.8x + 5.8 D. 1.6x - 4
Mathematics
Write with positive exponents.2-1/4 ? 53/5
A. - 103/20
B. 107/20
C. 
D. 
Mathematics