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3 years ago

How do you put the number 250 inStandard form

Mathematics

2 answers:

Aliun [14]3 years ago

4 0

Answer:

In standard form: 250 = 2.5 x 10^2

or two hundred and fifty

Step-by-step explanation:

At least I think so sorry if this is incorrect.

olasank [31]3 years ago

3 0

Answer:

I believe it would be 2.5x10^3

or two-hundred and fifty

Step-by-step explanation:

hope it helps and please correct me if I'm wrong

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3 years ago

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Answer: Rearrange:

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Step by step solution :

STEP

Pulling out like terms

1.1 Pull out like factors :

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Equation at the end of step

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3 years ago

What is cos theta when sin theta = sqrt 2/3

Fittoniya [83]

Answer:

Value of cosθ is ±√7/3 .

Step-by-step explanation:

According to the Question , value of :

$\red{\implies sin\theta = \dfrac{\sqrt2}{3}}$

And , we know the identity of sine and cosine as ,

$\boxed{\pink{\sf\implies sin^2\theta + cos^2\theta = 1} }$

Using , this identity we have ;

$\implies sin^2\theta + cos^2\theta = 1 \\\\\implies \bigg( \dfrac{\sqrt2}{3}\bigg)^2 + cos^2\theta = 1 \\\\\implies \dfrac{2}{9} + cos^2\theta = 1 \\\\\implies cos^2\theta = 1 - \dfrac{2}{9} \\\\\implies cos^2\theta = \dfrac{9-2}{9} \\\\\implies cos\theta = \sqrt{\dfrac{7}{9}} \\\\\underline{\boxed{\blue{\bf \implies cos\theta = \pm \dfrac{\sqrt 7 }{3}}}}$