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mestny [16]
3 years ago
15

The formula for (a-b)^2 is a^2-2ab+b^2.

Mathematics
1 answer:
photoshop1234 [79]3 years ago
8 0
Don't forget negative x negative = positive and negative + negative is still negative

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Doogle drove 30 and one-third miles toward his brother's house in one-third of an hour. About how long will the entire 100-mile
Olenka [21]

Answer:

1\frac{9}{91}\ hours

Step-by-step explanation:

we know that

30 and one-third miles is equal to

30\frac{1}{3}\ mi=\frac{30*3+1}{3}=\frac{91}{3}\ mi

one-third of an hour is equal to

\frac{1}{3}\ h

Applying proportion

\frac{(1/3)}{(91/3)}\frac{h}{mi}=\frac{x}{100}\frac{h}{mi}\\ \\x=\frac{100}{91}\ h

Convert to mixed number

\frac{100}{91}\ h=\frac{91}{91}+\frac{9}{91}=1\frac{9}{91}\ h

8 0
3 years ago
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MakcuM [25]

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7 1/3 + 5 5/6 sum up as a fraction please 100 points
beks73 [17]

Answer:

The answer is 13 1/6

Step-by-step explanation:

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3 0
2 years ago
pls help no one will how do estimate the numbers im about to give you by rounding to the nearest integer 15.23 - 6.835 and 6.88
gayaneshka [121]
I think it's just 15, -7, 7, -8, and 80. 
I am probably wrong though, 
Is it all one long equation with the plus and minus signs? 
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3 years ago
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