Perform the addition or subtraction.(3x4 + 4xy - y3) - (x4 + 6xy + 4y3)
A. 2x4 - 2xy - 5y3
B. 2x4 - 2xy - 3y3
C. 4x4 + 15xy + 3y3
D. 3x4 - 2xy - 5y3
Answer: A
Mathematics
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Answer the question asked. When necessary, round to the nearest hundredth.Glenn and Paula want to dig an irrigation channel for their newest garden. Together it takes them 1.7 hours to dig an appropriately sized irrigation channel. If Paula can dig the channel by herself in 2.3 hours, how long would it take Glenn by himself to dig the channel? If necessary, round to the nearest tenth of an hour.
A. 4 hr B. 0.6 hr C. 4.8 hr D. 6.5 hr
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If 
with A in QII, and 
with B in QIV, find
?
?
A. 
B. ?
C. ?
D. ?
E. ?
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Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 
A. 
B. 
C. 
D. 
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Find the difference.
- 
A. - 
B. 
C. - 
D. - 
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