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tensa zangetsu [6.8K]
3 years ago
9

Can someone help me with this please?

Mathematics
1 answer:
GarryVolchara [31]3 years ago
7 0

Answer:

16.49

Step-by-step explanation:

21^2 - 13^2 = 272

square root 272 = 16.49

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−3(2+4k)+7(2k−1) eqivalent expression
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Answer:

\large\boxed{-3(2+4k)+7(2k-1)=2k-13}

Step-by-step explanation:

-3(2+4k)+7(2k-1)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-3)(2)+(-3)(4k)+(7)(2k)+(7)(-1)\\\\=-6-12k+14k-7\qquad\text{combine like terms}\\\\=(-12k+14k)+(-6-7)\\\\=2k-13

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3 years ago
9 What is the next whole number after twenty thousand ? Write your answer in figures .
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Answer:

9. 20,001

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Step-by-step explanation:

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2 years ago
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4 years ago
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ladessa [460]

Answer:

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Step-by-step explanation:

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