Write the appropriate rotation formulas so that in a rotated system the equation has no x'y'-term.13x2 - 6xy + 7y2 - 8x + 8y = 0
A. x = 
x' - 
y'; y = 
x' + 
y'
B. x = 
(x' - y'); y = 
(x' + y')
C. x = 
x' - 
y'; y = 
x' + 
y'
D. x = -y'; y = x'
Answer: C
You might also like to view...
Evaluate the polynomial function for the given value.S(x) = 0.8x2 - 4.8x + 2.7; S(-0.2)
A. 3.692 B. 1.019 C. -3.692 D. 0.155
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 3xy2i + 3x2yj + 2xyk ; D: the region cut from the solid cylinder x2 + y2 ? 9 by the planes z = 0 and z = 2
A. 972?
B. 243?
C. 
?
D. 486?
Use a proportion to solve the problem.Joan can mow a 10-acre field in 3 hours. How long would it take her to mow a 5-acre field?
A. 4.5 hours B. 3.5 hours C. 1.5 hour(s) D. 0.5 hour
Construct the specified histogram.The weights (in ounces) of 38 tomatoes are shown below. Construct a histogram to represent the data. Use 8 classes with a class width of 0.2 and begin with a lower class boundary of 1.95.
What will be an ideal response?