Provide an appropriate response.A student argued that it is impossible to use the substitution method to determine if a system of equations has no solution or an infinite number of solutions. Is the student correct?

Fill in the blank(s) with the appropriate word(s).


No

Mathematics

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The number line in the following graphic represents fictional net exports in billions of dollars for five countries. Net exports are obtained by subtracting total imports from total exports; a negative net export means the country imported more goods than it exported.What is the sum of net exports for China and The United States ?

A. 230 billion dollars B. 0 billion dollars C. 30 billion dollars D. 10 billion dollars

Mathematics

Find the value of the exponential expression. 3

A. 3 
B.
C.  
D.  

Mathematics

Solve the problem.Jerry builds rocking chairs and porch swings and sells them a a local flea market. The lumber requirements for each type of item are summarized in the table below. Currently, Jerry has 100 2×4's, 55 2×6's, and 100 1×4's in stock. Rocking chairs sell for $40 and porch swings sell for $65. How many pieces of each type of lumber are left over after Jerry has built the number of chairs and swings that maximize his revenue?

A. 4 2×4's, 0 2×6's, and 5 1×4's. B. 0 2×4's, 0 2×6's, and 15 1×4's. C. 15 2×4's, 0 2×6's, and 0 1×4's. D. 5 2×4's, 0 2×6's, and 4 1×4's.

Mathematics

Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 tan t, y = 2 sec t; 0 ? t ? 2?

A.  +  = 1; for x in -? < x < ?
B. y = 2; for x in -? < x < ?
C. y = x2 - 9; for x in -3 ? x ? 3
D.  -  = 1; for x in -? < x < ?

Mathematics