- - - - -_−53 -_=_91 - - - ~ k^2 What is the positive solution to the given equation?
Correct answer: D (parsed from the explanation — this source omits an answer key for this item)
Explanation
53 2=144 Choice D is correct. Adding to each side of the given equation yields k . =!12 Taking the square root of each side of this equation yields k . Therefore, the 12 positive solution to the given equation is . Choice A is incorrect. This is the positive solution to the equation 2-53=20,683 2-53=91 k , not k . Choice B is incorrect. This is the positive 2-53=5,131 2-53=91 solution to the equation k , not k . Choice C is incorrect. 2-53=1,391 2-53=91 This is the positive solution to the equation k , not k . 34 SAT PRACTICE TEST #6 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 1
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