Use the fundamental identities to simplify the expression.1 - cos2 ?
A. sin ?
B. - sin2 ?
C. tan2 ?
D. sin2 ?
Answer: D
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Solve the problem.The earth, Jupiter, Saturn, and Neptune all revolve around the sun. The earth takes 1 year, Jupiter approximately 12 years, Saturn approximately 30 years, and Neptune approximately 165 years to make a complete revolution. How often will Saturn and Neptune appear in the same direction in the night sky as seen from earth?[Hint: Find the LCM of 30 and 165]
A. Every 990 years B. Every 1650 years C. Every 4950 years D. Every 330 years
Solve the problem.County records list a rectangular parcel of land as measuring 38,688 square yards. A surveyor measures the length of the parcel of land as 248 yards. What is the width of the parcel?
A. The width of the parcel is 165 yards. B. The width of the parcel is 149 yards. C. The width of the parcel is 38,440 yards. D. The width of the parcel is 156 yards.
11 L is the measure of __________ (capacity, distance, weight, temperature).
Fill in the blank(s) with the appropriate word(s).
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.4
+ 3
A. 1
B. 7
C. 1
D. 