Aformula is expressed as d = a ( 2 + kt ) express k in terms of d, a and t

Step-by-step explanation:

Given the formula D=a(2+kt)

we have to express k in terms of D,a and t

Divide by a on both both sides

Subtracting 2 from both sides

Divide by t throughout the equation

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answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.