Find all real numbers in the interval [0, 2?) that satisfy the equation.2 cos2x = 
cos x
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the product. Write the answer in standard form.(6 + 8i)(6 - 8i)
A. -28 B. 100 C. 36 + 64i2 D. 36 - 64i2
Mathematics
Solve the equation. logx
= 1
A. 2
B. 
C. 1
D. 
Mathematics
Cream is approximately 22% butterfat. How many gallons of cream must be mixed with milk testing at 2% butterfat to get 23 gallons of milk containing 6% butterfat?__________ gallons
Fill in the blank(s) with the appropriate word(s).
Mathematics
The polar coordinates of a point are given. Find the rectangular coordinates of the point.(400, 130°) Round the rectangular coordinates to two decimal places.
A. (-257.12, 306.42) B. (306.42, 257.12) C. (306.42, -257.12) D. (-257.12, -306.42)
Mathematics