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True [87]
2 years ago
12

Suppose triangle bca is congruent to triangle ecd. which statement is not necessarily true?

Mathematics
1 answer:
natali 33 [55]2 years ago
5 0
Answer is <span>a) line BC is congruent to line CD

this is not true

BC should be </span>congruent to line EC, not CD
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A sign language club made $627.50 from selling popcorn at a festival. The popcorn cost the club $95.00. Which expression represe
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If the product of two consecutive integers is decreased by 20 times the greater integer, the result is 442. find the integers
Contact [7]
Let the first integer be x.  Then the next consecutive integer is x+1.

Translating the word problem into symbols, x(x+1)-20(x+1) = 442.

Then x^2 + x - 20x - 20 = 442

or      x^2 - 19x - 462 = 0

Solve by completing the square:

          x^2 - 19x + 90.25 - 90.25 - 462 = 0

           (x-9.5)^2 - 552.25 = 0

Taking the positive square root of both sides, we get x-9.5 = 23.5, or
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The two consecutive integers are 33 and 34.

Check:  (33)(34)-20(34) = 442 (as expected).

            
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