Simplify the expression. Assume that all variables represent positive real numbers.815/4
A. 243
B. 19,683
C. 2187
D. 6561
Answer: A
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Solve the problem.The elasticity ? of a particular thermoplastic can be modeled approximately by the relation 
, where T is the Kelvin temperature. If the thermometer used to measure T is accurate to 1%, and if the measured temperature is 473 K, how should the elasticity be reported?
A. ? = ± 0.004 B. ? = 0.176 ± 0.002 C. ? = 0.176 ± 0.004 D. ? = 0.176
Solve each of the following systems of equations. If the system is inconsistent or dependent, say so.6x + 9y = -36-4x + 6y = 24
A. (-7, 1) B. No solution C. (-6, 1) D. (-6, 0)
Find the GCF of the list of terms.45x3, 70x4, 90x6
A. 5x B. 5x4 C. 5x6 D. 5x3
Use the distributive property to simplify.(3x + 3y + 2)(3xy)
A. 9x2y - 9xy2 - 6xy B. 9x2 + 9y2 + 6xy C. 3x + 3y + 6xy D. 9x2y + 9xy2 + 6xy