Find a rectangular equation for the plane curve defined by the parametric equations.x = 5t3, y = 7t2, for t in (-?, ?)
A. y = 
x2/3
B. y = 7
2/3
C. y = 35x6
D. y = 7
3/2
Answer: B
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Use a product-to-sum identity to rewrite the expression.sin(4t) sin(2t)
A. 0.5(sin(6t) + sin(2t)) B. 0.5(cos(2t) - cos(6t)) C. 0.5(cos(6t) + cos(2t)) D. 0.5(sin(6t) - sin(2t))
If the number in the statement is written in scientific notation, write it without exponents. If it is written without exponents, write it in scientific notation.The population of a small country is 4,016,000.
A. 4.016 × 105 B. 4.016 × 104 C. 4.016 × 10-5 D. 4.016 × 106
Solve the inequality, then graph the solution.4c + 5 ? 3c + 14
A. (-?, 9]
B. [9, ?)
C. (4, ?)
D. (-?, 4)
Assuming all variables are positive, use properties of logarithms to write the expression as a sum or difference of logarithms or multiples of logarithms.log89x
A. log8 9 + log8 x B. log4 9 - log4 x C. log4 9 + log4 x D. log8 9 - log8 x