Solve the right triangle ABC with C = 90°. Your answer should give an angle in decimal degrees when given an angle in decimal degrees and in degrees and minutes when given an angle in degrees and minutes. Use the rules for significant digits.A = 61°3', c = 5.577 ft
A. B = 28°57', a ? 4.880 ft, b ? 2.700 ft
B. B = 28°57', a ? 4.88 ft, b ? 2.70 ft
C. B = 28°57', a ? 4.88 ft, b ? 2.7 ft
D. B = 29°57', a ? 4.880 ft, b ? 2.700 ft
Answer: A
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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) = -8x - 7
A. f(x): D = {x|x > -8}, R = {y|y > -7}; f-1(x): D = {x|x < -8}, R = {y|y < -7} B. f(x): D = {x|x > -8}, R is all real numbers; f-1(x): D = {x|x < -8}, R is all real numbers C. f(x): D is all real numbers, R = {y|y > -7}; f-1(x): D is all real numbers, R = {y|y < -7} D. 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
evaluate
Solve.An engineer uses the expression 
to describe the width of a rectangular steel plate she is designing for a machine. The expression 
describes the length. Write a rational expression for the difference of the width and the length.
A. 
- 
B. 
+ 
C. 
D. 
Find the length of DE in the illustration.
A. DE is 15.5 m B. DE is 12.7 m C. DE is 11.1 m D. DE is 13.2 m E. DE is 14.3 m