3 years ago

X^2=4 square root property

1 answer:

Olin [163]3 years ago

7 0

${x}^{2} = 4 \\ x = \sqrt{4} \\ x = 2$

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yan [13]

It's because a tenth means that you've divided it by 10. So if it's 20, it means you're multiplying tenths by 20, leaving you with 2 wholes.

For example, you have 2 cakes and you cut each into 10 slices, the slices are each one tenth of the whole cake, and in total there are 20 tenths.

7 0

3 years ago

igor_vitrenko [27]

Answer:

B and D

Step-by-step explanation:

5 0

2 years ago

Kisachek [45]

$\frac{2}{4^-3} \\ \\ \frac{2}{ \frac{1}{4^3} } \\ \\ \frac{2}{ \frac{1}{64} } \\ \\ 2 \times 64 \\ \\ 128 \\ \\ Answer: \fbox {128}$

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3 years ago

LuckyWell [14K]

Answer:

-12x^5 + 14x^3 -2x^2 + 10x

Step-by-step explanation:

-2x(6x^4 -7x^2 +x-5) =

-12x^5 + 14x^3 -2x^2 + 10x

8 0

3 years ago

anyanavicka [17]

Answer:

10 minutes

Step-by-step explanation:

Mario can eat e21 hot dog in 6 minutes

Let 35 hot dog eats in x minutes :

$\frac{35}{x} =\frac{21}{6} \\x=\frac{35(6)}{21} \\x=10 min$

Therefore, mario would eat 35 dogs in 10 min.

6 0

3 years ago