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quester [9]
3 years ago
7

4+1=5 5+2=12 6+3=21 8+11=?

Mathematics
2 answers:
Delicious77 [7]3 years ago
3 0
99
5*2+2=12
6*3+3=21
8*11+11=99
ohaa [14]3 years ago
3 0

5*2+2=12
6*3+3=21
<span>8*11+11=99</span>
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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.

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3 years ago
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2 years ago
Which number line can be used to find the distance between (4, -1) and (8. - 1)?
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I don’t really no this answer? Sorry
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3 years ago
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Alex Ar [27]
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2 years ago
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