Mathematics Test—No Calculator - SAT Suite of Assessments

equals negative 25. Question 18. According to the preceding system of equations, what is the value of x ? Answer and explanation for . question 18. Question 19. In a right triangle, one angle measures . x. degrees, where sine of . x degrees equals four fifths. What is cosine of, parenthesis, 90 degrees minus . x. degrees, close parenthesis ? ................
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