Write the decimal of the point shown on the number line.
0.4?0.45?0.5
A. 0.44
B. 0.41
C. 0.42
D. 0.415
Answer: C
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Simplify by factoring. Assume no radicands were formed by raising negative numbers to even powers.
A. x
B. xyz
C. xy
D. xy
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.8w + 8x - 6y - 4z = -287w + 6x - 9y - 4z = -368w + 8x + 7y + 5z = 15-6w - 4x + 8y + 8z = 24
A. (-1, 4, -5, 2) B. (2, 3, -4, -2) C. (2, -3, 4, -1) D. No solution
Solve.A digital photograph is 10 pixels longer than it is wide and has a total area of 4200 pixels. Find the dimensions of this photograph.
A. 80 × 90 pixels B. 50 × 60 pixels C. 60 × 70 pixels D. 70 × 80 pixels
Use a proportion to solve the problem.On a map, the length of a nature-center trail is 6.4 centimeters. If the scale is 2 centimeters to 20 kilometers, what is the actual length of the trail?
A. 65 km B. 68 km C. 128 km D. 64 km