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How many times stronger is a black hole s gravity compared to Earth s? If h(x) = sqrt(6 + 5f(x)),where f(2) = 6 and f'(2) = 3,find h'(2).? As os 2014, approximately how many programs were accredited by NAEYC? Determine the values of a,b and c at which parabola y=ax^2+bx+c passing through point (1,1) has a tangent line with slope 7, at point 3,3 .? What is the formula weight of sodium chloride I get 58 but the answer is 62 so what am i missing?