Find the missing length in the similar triangles.Find the length of DE.
A. DE = 116.7
B. DE = 85.7
C. DE = 50
D. DE = 42.9
Answer: C
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Find the mean of the list of data. 13, 15, 17, 17, 15, 13
A. 16 B. 14 C. 17 D. 13 E. 15
Divide, if possible. Write the answer in simplest form.-2
÷ 1
A. -2
B. -2
C. -2
D. -3
Solve the exponential equation. For irrational solutions, round to four decimal places.9x + 9 = 243x
A. 
B. 
C. 
D. 
Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse.f(x) = 
A. f(x): D is all real numbers, R is all real numbers;
f-1(x): D is all real numbers, R is all real numbers
B. f(x): D = {x|x ? 1}, R = {y ? 0};
f-1(x): D = {x|x ? 0}, R = {y|y ? 1}
C. f(x): D is all real numbers, R = 
;
f-1(x): D = 
, R is all real numbers
D. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 