Element X decays radioactively with a half life of 14 minutes. If there are 920 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 10 grams? Y = a ( . 5 ) t h y=a(.5) h t ​

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

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c

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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