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sdas [7]
3 years ago
8

Pls help me on these 2 questions !!

Mathematics
1 answer:
motikmotik3 years ago
3 0

Answer:

1. 23

2. 8

Step-by-step explanation:

☆Cross multiply.

\frac{2}{10}  =  \frac{4}{a - 3}  \\  \\ 40 = 2(a - 3) \\ 40 = 2a - 6 \\   \frac{ + 6  =  \:  \:  \:  \:  \:  \:  \:  \:  + 6}{ \frac{46}{2} =  \frac{2a}{2}  }  \\  \\ 23 = a

--------

\frac{k}{6}  =  \frac{4}{3}  \\  \\  \frac{24}{ 3}  =  \frac{3k}{3}  \\  \\ 8 = k

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Prove that: –7 is not the arithmetic square root of 49
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Answer:

–7 is not the arithmetic square root of 49 only in case we are taking it for natural number.

Step-by-step explanation:

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Step-by-step explanation:

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