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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Provide an appropriate response.Graph y = - tan x and its derivative together on 
. Is the slope of the graph of 
ever positive? Explain.
What will be an ideal response?
Mathematics
Find the center and the radius of the circle.x2 + y2 + 4x + 16y = -43
A. (8, 2); r = 25 B. (2, 8); r = 25 C. (-2, -8); r = 5 D. (-8, -2); r = 5
Mathematics
Solve the problem. Express the answer as a percentage.A coin is biased to show 39% heads and 61% tails. The coin is tossed twice. What is the probability that the coin turns up tails on both tosses?
A. 61% B. 37.21% C. 22% D. 39%
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 3x2 - 9, x ? 0
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = - 
Mathematics