work:
Mathematics, 31.03.2020 00:54 lilmsnyah
Tyler is using the distributive property on the expression 9 - 4(5x – 6). Here is his
work:
9 - 4(5x - 6)
9+(-4)(5x +-6)
9 +-20x +-6
3 – 20x
Mai thinks Tyler's answer is incorrect. She says, “If expressions are equivalent then
they are equal for any value of the variable. Why don't you try to substitute the same
value for x in all the equations and see where they are not equal?”
a. Find the step where Tyler made an error.
b. Explain what he did wrong.
c. Correct Tyler's work.
Answers: 2
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Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?
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Answers: 2
Tyler is using the distributive property on the expression 9 - 4(5x – 6). Here is his
work:
work:
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