Write an expression that gives all solutions to the equation.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: A
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Simplify.
A. -1 B. 1 C. -i D. i
Solve the problem.On a map of the Fox River, 1 centimeter represents 7 kilometers. If a trail by the river is actually 22.40 kilometers long, what is the length of the river on the map? Round to nearest tenth.
A. 10.4 centimeters B. 3.2 centimeters C. 15.4 centimeters D. 5.2 centimeters
Match the equation with the surface it defines.
- 
- 
= 1 
A. Figure 3 B. Figure 1 C. Figure 2 D. Figure 4
Solve the problem.Peter's Construction Company needs to cut an arch for the top of a doorway. The arch needs to be 10 feet wide and 4 feet high. The arch will be a section of a circle, drawn using a stretched string with a pencil attached at the end as a compass. Using the coordinate system as shown in the drawing, find the coordinates of the point that would be the center of the circle. Also find the radius of the circle. Round to the hundredths place.
?a = 5
A. (0, -1.13); 5.13 B. (0, -1.03); 5.03 C. (0, -1.06); 5.06 D. (0, -11.25); 15.25