Express the number in decimal notation.6.408 × 10-5
A. 0.00006408
B. 0.000006408
C. 0.0006408
D. -640,800
Answer: A
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Write the number in words.47,803
A. four thousand seven, eight hundred three B. forty-seven thousand, eight hundred three C. forty-seven thousand, eighty-three D. forty-seven hundred thousand, eight hundred three
Find the domain and range of the inverse of the given function.f(x) = 
A. Domain and range: all real numbers B. Domain: [0, ?); range: [9, ?) C. Domain: [9, ?); range: [9, ?) D. Domain: [9, ?); range: [0, ?)
Add.7.471 + 18.827 + 170.160
A. 196.448 B. 196.348 C. 196.458 D. 196.358
Solve the problem.A satellite dish is shaped like a parabola. The signals that are received by the dish strike the surface of the dish and are reflected to a single point, where the receiver of the dish is located. If the dish is 8 feet across at its opening and 1.3 feet deep at its center, at what position should the receiver be placed?
A. 0.6 feet from the base along the axis of symmetry B. 5.3 feet from the base along the axis of symmetry C. 4 feet from the base along the axis of symmetry D. 3 feet from the base along the axis of symmetry