3 years ago

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

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

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3 years ago

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NikAS [45]

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Step-by-step explanation:

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3 years ago

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MakcuM [25]

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Step-by-step explanation:

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3 years ago

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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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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