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Mrac [35]
2 years ago
13

Look at the right triangle ABC​

Mathematics
1 answer:
LenaWriter [7]2 years ago
6 0

Answer: A) Justification 1

<u>Step-by-step explanation:</u>

The student did not match the angles correctly.

∠ABC = 90° and ∠BCD = 60° so they cannot state that the angles are congruent. The other statement on that line is wrong also, but is irrelevant since there is already an error in that line.

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What is the answer for m+12=10
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Answer:

m = -2

Step-by-step explanation:

Since 10 is smaller than 12, we have to subtract to get a negative number.

10 - 12 = -2

7 0
2 years ago
Write the following in correct mathematical language: 45.23
dexar [7]

Forty-five and twenty-three hundredths.

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3 0
2 years ago
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Chris bought 6 packages of napkins for his restaurant. there were 200 napkins in each packet. how many napkins did chris buy
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2 years ago
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3 years ago
Michael plays 1/5 of a song in 1/15 pf a minute. How many minutes will it take to play whole song
mr Goodwill [35]
Well, a whole will be five fifths or 5/5.

now, he only plays 1/5 in 1/15, how many minutes will it take to play the whole 5/5 of the song?

\bf \begin{array}{ccll}&#10;\stackrel{part}{song}&\stackrel{part}{minutes}\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;\frac{1}{5}&\frac{1}{15}\\\\&#10;\frac{5}{5}&m&#10;\end{array}\implies \cfrac{\frac{1}{5}}{\frac{5}{5}}=\cfrac{\frac{1}{15}}{m}\implies \cfrac{\frac{1}{5}}{\frac{5}{5}}=\cfrac{\frac{1}{15}}{\frac{m}{1}}\implies \cfrac{1}{5}\cdot \cfrac{5}{5}=\cfrac{1}{15}\cdot \cfrac{1}{m}

\bf \cfrac{1}{5}=\cfrac{1}{15m}\implies 15m=5\implies m=\cfrac{5}{15}\implies m=\stackrel{\textit{minutes}}{\cfrac{1}{3}}
6 0
3 years ago
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