Classify the function as a polynomial function, rational function, or root function, and then find the domain. Write the domain in interval notation.f(x) = 
A. root function; (-?, 
]
B. root function; (-?, 13]
C. root function; (-?, 13) ? (13, ?)
D. root function; (-?, 
) ? (
, ?)
Answer: B
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Solve the problem.Joan wants to split her office into two parts by installing a room divider along the diagonal of the room creating two triangular spaces. The divider is 12 feet long and the room is two feet longer than it is wide. Find the exact dimensions of the room and then approximate the dimensions to the nearest tenth of a foot.
A. width = 1 + 
? 9.4 ft
length = -1 + 
? 7.4 ft
B. width = -1 + 
? 6.1 ft
length = 1 + 
? 8.1 ft
C. width = -2 + 
? 6.4 ft
length = 
? 8.4 ft
D. width = -1 + 
? 7.4 ft
length = 1 + 
? 9.4 ft
Subtract.
- 
A. - 
B. 
C. -7
D. - 
Solve the problem.A mother with 8 children takes 5 of them at a time to the amusement park, without taking the same 5 children more than once. What is the maximum number of times each child will go to the amusement park?
A. 35 B. 70 C. 840 D. 56
Find the real or imaginary solutions by using the quadratic formula.x2 + 35 = 5x
A. {0, 5}
B. 
C. 
D. {±5}