Provide an appropriate response.Explain how (-8)8 and -88 are different.
What will be an ideal response?
In the first, -8 is raised to the power 8. In the second, 8 is raised to the power 8, then the negative is applied.
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Provide an appropriate response.The domain of f(x) = 
consists of all real numbers x such that
A. x ? 
.
B. x > 
.
C. x ? - 
.
D. x > - 
.
E. x ? 
.
All references are to the figure below. The distance between A and D is a, and the distance between D and C is x. 
Assuming that A = 36°, ?BDC = 42°, and c2 = 21, find h, x, and a.
A. h ? 12.3, x ? 13.7, a ? 3.3 B. h ? 14.1, x ? 15.6, a ? 3.7 C. h ? 12, x ? 14, a ? 3.3 D. h ? 14, x ? 16, a ? 3.7
In the LORAN (LOng RAnge Navigation) radio navigation system, two radio stations located at A and B transmit simultaneous signals to a ship or an aircraft located at P. The onboard computer converts the time difference in receiving these signals into a distance difference |A| - |B|, and this, according to the definition of a hyperbola, locates the ship or aircraft on one branch of a hyperbola (see the figure). Suppose that station B is located L = 480 mi due east of station A on a coastline. A ship received the signal from B 1280 microseconds (?s) before it received the signal from A. Assuming that radio signals travel at a speed of 1000 ft/?s and if the ship is due north of B, how far off the coastline is the ship? Round your answer to the nearest mile. Select the correct answer.
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Solve the problem.Matthew has $5600 invested in the stock market. This amounts to 20% of his total savings. How much has Matthew saved?
A. $280,000 B. $28,010 C. $28,000 D. $28,100