Write a polynomial equation in standard form with the given solutions.0, 3, 7
A. x3 - 10x2 - 21x = 0
B. x3 + 10x2 - 21x = 0
C. x3 - 10x2 + 21x = 0
D. x3 + 10x2 + 21x = 0
Answer: C
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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) = 
A. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
B. f(x): D = 
, R = 
;
f-1(x): D is all real numbers, R = 
C. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
D. f(x): D = 
, R is all real numbers;
f-1(x): D is all real numbers, R = 
Solve the problem.Given the area, the formula r = 
can be used to calculate the radius, r, of a circle. Find the length of the radius for a circle with an area of 100 square feet. Round your answer to the nearest hundredth. Use 3.14 for ?.
A. 63.69 feet B. 15.92 feet C. 5.64 feet D. 31.85 feet
Write y as an affine combination of the other points listed.v1 = 
, v2 = 
, v3 = 
, y = 
A. y = -5v1 + 4v2 + 2v3 B. y = 3v1 + 3v2 - 5v3 C. y = 4v1 - 2v2 - v3 D. y = v1 - 2v2 + 2v3
Solve using Cramer's Rule.
A. (2, 3, 2) B. (-2, 3, 2) C. (2, -3, 2) D. (-2, 3, -2)