Find a rectangular equation for the plane curve defined by the parametric equations.x = t + 4, y = t2
A. y = x2 - 8x + 16
B. y = 
C. y = 
+ x + 4
D. y = x2 + 16
Answer: A
Mathematics
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Use the formula for 
to solve.A church has 7 bells in its bell tower. Before each church service 5 bells are rung in sequence. No bell is rung more than once. How many sequences are there?
A. 84 B. 21 C. 2520 D. 42
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Find a general term an for the geometric sequence.The first five terms of the sequence are 4, - 2, 1, - 
, 
.
A. an = 6 
n-1
B. an = 4 
n-1
C. an = 
n-1
D. an = 4 
n-1
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Write the indicated term of the binomial expansion.(2x - 3y)9; 4th term
A. -72,576x3y6 B. 48,384x3y6 C. -145,152x6y3 D. 48,384x6y4
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Use the associative property of addition to write an equivalent algebraic expression.(qr + e) + p
A. p + (qr + e) B. q + (re + p) C. qr + (e + p) D. q(r + e) + p
Mathematics