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MArishka [77]
2 years ago
9

b) Your sister says that the angles ∠DCA and ∠BCA are supplementary angles. Is she correct? Explain your reasoning. (1 point)

Mathematics
2 answers:
Oksi-84 [34.3K]2 years ago
8 0

Answer:

incorrect

Step-by-step explanation:

pickupchik [31]2 years ago
6 0

Answer:

She is incorrect.

Step-by-step explanation:

ABCD is a quadrilateral. Angle C measures less than 180 degrees. The sum of the measures of two supplementary angles equals 180 degrees. The sum of the measures of angles DCA and BCA equals the measure of angle C, but angle C measures less than 180 degrees, so the angles are not supplementary.

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Linda commutes a total of 54 miles to and from work every day. She needs a new car, and good gas mileage is important to her. Sh
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The answer is 1 gallon.

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The problem asks for how many gallons of gas she will safe in a five-day work work week. So first you need to compute how many miles that would be. 

54 miles/day x 5days =  270 miles

So in a five day work week, she will travel 270 miles.

Now to see how much gas she will save, compute how many gallons she will use up for each car, given the mpg of each and find the difference. 

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Second model: 27 mpg
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10gallons - 9gallons = 1g

So she would have saved 1 gallon of gas if she buys the first car instead of the second. 
 
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1 year ago
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Matilda, Tanya and Renee are auditioning for a play. In how many ways can the girls fill the roles of a grandmother, mother, and
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The girls fill the roles of a grandmother, mother, and daughter by permutation. It is a way, especially one of several possible variations, in which a set or number of things can be ordered or arranged. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
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Alecsey [184]

Answer:

D

Step-by-step explanation:

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Correct option - option D

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The answer is c because is a vrtical line



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