Provide an appropriate response.Consider these two problems:(A) Solve this equation (x + 5)2 = 225. (B) Solve this equation (x + 5)2 = - 225.What is the answer to part (A) and (B) , and why are the answers to each part different?
What will be an ideal response?
(A) x = - 5 ± 15
(B) No real solution
Part (A) requires that the square root of positive number be found, but part (B) requires that the square root of a negative be found. In the real number system, the square root of a negative number can not be found.
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Find the cross product a x b.
a=(5,5,3), b(-5,4,-4)
Write the numeral in words.89,008,800,397
A. eight hundred nine billion, eight million, eight hundred thousand, three hundred ninety-seven B. eight hundred nine billion, eight million, eight thousand, three hundred ninety-seven C. eighty-nine billion, eight million, eighty thousand, three hundred ninety-seven D. eighty-nine billion, eight million, eight hundred thousand, three hundred ninety-seven
Solve the problem.Two tracking stations are on the equator 122 miles apart. A weather balloon is located on a bearing of N 32°E from the western station and a bearing of N 12°E from the eastern station. How far, to the nearest mile, is the balloon from the western station? Round to the nearest mile.
A. 349 mi B. 248 mi C. 358 mi D. 239 mi
Translate the problem to a system of equations, then solve using Cramer's Rule.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 500 gallons of gasohol containing 10% alcohol?
A. 208 gal 5%, 292 gal 12% B. 143 gal 5%, 357 gal 12% C. 357 gal 5%, 357 gal 12% D. 25 gal 5%, 60 gal 12%