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
Answer: A
Mathematics
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A. 4 sin ? (1 + 39)
B. 4 cos ? + 3 sin2 ?
C. 3 cos2 ? + 2 sin ?
D. 4 sin ? (1 - 3 )
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Graph the function.f(x) =
A.
B.
C.
D.
Mathematics
If possible, use the graph to evaluate the expression.f(-2)
A. 2 B. 3 C. 4 D. 5
Mathematics
Solve the right triangle; angle C is the right angle. Round to the nearest tenth where necessary.a = 2.1, b = 1.3
A. A = 53.7°, B = 36.3°, c = 2.5 B. A = 58.2°, B = 31.8°, c = 2.5 C. A = 38.2°, B = 51.8°, c = 3.4 D. A = 31.8°, B = 58.2°, c = 2.5
Mathematics