2) What is the value of DE if AB = 6, AD = 8, and BC = 3?
A) 3.5
B) 4
C) 4.5
D) 5

B

Step-by-step explanation:

Δ ABC and Δ ADE are similar thus the ratios of corresponding sides are equal, that is

= , substitute values

= ( cross- multiply )

6DE = 24 ( divide both sides by 6 )

DE = 4 → B

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:

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

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