Write an equivalent expression. Use a commutative law.y + 3
A. y3
B. 3 + y
C. 3(y + 1)
D. 3y
Answer: B
Mathematics
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Determine the appropriate rotation formulas to use so that the new equation contains no xy-term.x2 + 2xy + y2 - 8x + 8y = 0
A. x = 
x' - 
y' and y = 
x' + 
y'
B. x = -y' and y = x'
C. x = 
(x' - y') and y = 
(x' + y')
D. x = 
x' - 
y' and y = 
x' + 
y'
Mathematics
Provide an appropriate response.Alice's age 15 years ago can be expressed as:
A. 2A - 15 B. A + 15 C. 2A + 15 D. A - 15
Mathematics
Find 
in terms of 
.
Select the correct answer.
Mathematics
Use a calculator to convert 100°10' to radians. Round your answer to the nearest hundredth. (First convert to decimal degrees, then multiply by the appropriate conversion factor to convert to radians.) ?
A. 1.77 B. 1.75 C. 1.71 D. 1.81 E. 1.83
Mathematics