Use scientific notation to express the diameter of a human hair that measures 0.0018 centimeters. a) 1.8 x 10-3 b) 1.8 x 10-4 c) 1.8 x 103 d) 1.8 x 104

The correct answer is A) 1.8 * 10^-3

Step-by-step explanation:

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

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step-by-step explanation: