The length of a room is 21 feet. If a floor plan has a scale of 
inch = 2 feet, then the length of the room on a floor plan is 5.25 inches.
Answer the following statement true (T) or false (F)
True
2x = 21(0.5) and x = 5.25
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Provide an appropriate response.Explain why the following four statements ask for the same information.(i) Find the roots of f(x) = 3x3 - 3x - 1(ii) Find the x-coordinates of the intersections of the curve y = x3 with the line y = 3x + 1.(iii) Find the x-coordinates of the points where the curve y = x3 - 3x crosses the horizontal line 
.(iv) Find the values of x where the derivative of g(x) = 
x4 - 
x2 - x + 5 equals zero.
What will be an ideal response?
Find the mistake, then find the correct answer.Solve for x: 3x2 - 7x + 1 = 0line 1 x = 
line 2 x = 
line 3 x = 
line 4 x = Not a real number because 
is not a real number.
What will be an ideal response?
Solve the system of equations by the substitution method.5x - 6y = 2 - 5x2x + 6y = x + 5y + -3
A. {(-1, 2)}
B. {(-1, -2)}
C. {(0, 2)}
D. 
Graph the polar equation for ? in [0°, 360°).r2 = 43 sin 4?
A. 
B. 
C. 
D. 