Solve the inequality.-3x2 + 7x - 5 ? 0
A. 
? x ? 5
B. -3 ? x ? - 
C. All real numbers
D. No solutions
Answer: C
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The surface area, in square inches, of a balloon of radius r inches is given by
?
?
A. Use functional notation to indicate the surface area, in cubic inches, of a balloon of radius 5.00 inches.B. Calculate the value you found in part A.C. If the radius of a balloon is doubled from 4.00 inches to 8.00 inches, does the surface area double?D. By what factor does the surface area of the balloon increase if the radius is increased from 4.00 inches to 8.00 inches?
What will be an ideal response?
The figure below is a regular hexagon ABCDEF with center O. (P, Q, R, S, T, and U are the midpoints of the sides.)
Which of the following reflections is not a symmetry of the regular hexagon?
A. the reflection with axis the line passing through A and D B. the reflection with axis the line passing through P and Q C. the reflection with axis the line passing through R and S D. the reflection with axis the line passing through A and B E. all of these are symmetries of the regular hexagon.
Find the exact value of the expression.cos 40° cos 20° - sin 40° sin 20°
A. 
B. 
C. 
D. 
Solve. If necessary, round to the nearest tenth.The zoo has hired a landscape architect to design the triangular lobby of the children's petting zoo. In his scale drawing, the longest side of the lobby is 20 cm. The shortest side of the lobby is 7 cm. The longest side of the actual lobby will be 36 m. How long will the shortest side of the actual lobby be?
A. 0.1 m B. 102.9 m C. 12.6 m D. 1 m