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
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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. 0 billion dollars B. 30 billion dollars C. 10 billion dollars D. 230 billion dollars
Provide an appropriate response.For the region in the first quadrant bounded by f(x) = 2x + 1, x = 0, y = 0, and x = 1, approximate the area by evaluating S4. (Use the right-hand endpoint of each sub-interval.)
Fill in the blank(s) with the appropriate word(s).
An experiment that involves learning in animals requires placing white mice and rabbits into separate, controlled environments, environment I and environment II. The maximum amount of time available in environment I is 200 minutes, and the maximum amount of time available in environment II is 100 minutes. The white mice must spend 16 minutes in environment I and 20 minutes in environment II, and the rabbits must spend 15 minutes in environment I and 50 minutes in environment II. Write a system of inequalities that describes the constraints on the number of each type of animal used in the experiment. Letxdenote the number of white mice andydenote the number of rabbits. ?
A. 
B. 
C. 
D. 
E. 
Graph the inequality on a number line. Then write the solution in interval notation.x ? -5
A. (-?, -5)
B. (-5, ?)
C. (-?, -5]
D. [-5, ?)