Tell whether the statement is true or false.cos 67° = cos 13°cos 54° - sin 13°sin 54°
A. True
B. False
Answer: A
Mathematics
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The height (in feet) of a certain kind of tree is approximated by 
where t is the age of the tree in years. Estimate the age of a 70-ft tree. Round your answer to the nearest hundredth.
?
__________ years
Fill in the blank(s) with the appropriate word(s).
Mathematics
Convert the equation to the standard form for a hyperbola by completing the square on x and y.4x2 - 16y2 - 16x - 32y - 64 = 0
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Use a calculator to evaluate the expression. Round your answer to three decimal placeslog 
A. -17.244 B. 0.058 C. -0.058 D. -0.134
Mathematics
Write the whole number in standard form.Six hundred forty-seven thousand, three hundred sixty-two
A. 604,362 B. 640,362 C. 600,047,362 D. 647,362
Mathematics