3 years ago

1+1= ?........................................

Mathematics

1 answer:

Brrunno [24]3 years ago

7 0

Answer:

1+1=2 is the answer for this easy question

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2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5.

Elza [17]

First, simplify the expression $2r^2 + 3s^3 - r^2 + 4t^2 - r^2.$ Here you have three terms with $r^2,$ group them in the following way:

$2r^2 + 3s^3 - r^2 + 4t^2 - r^2=2r^2-r^2-r^2+3s^3+4t^2=(2r^2-r^2-r^2)+3s^3+4t^2=$

$=r^2(2-1-1)+3s^3+4t^2=3s^3+4t^2.$

Then substitute s=-3 and t=5:

$3s^3+4t^2=3\cdot (-3)^3+4\cdot 5^2=3\cdot (-27)+4\cdot 25=-81+100=19.$

Answer: 19.

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a chef made two batches of soup. While making the first batch, he added 1/8 teaspoon of salt, tasted it, and then added another

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Hope this helps:) Also hi lofi girl nice to meet you lol

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