Determine the area the of the figure in terms of x

10 x² - 4x

Step-by-step explanation:

Area trapezoid = 1/2 ( (b1+b1)h)

1/2( 2x * 10x - 4)

1/2(20x² - 8x)

10x² - 4x

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-Chetan K

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

the answer is c)8

step-by-step explanaction: