All categories

2 years ago

What is 0.00000387 in scientific notation? A. 0.387 × 10–7 B. 3.87 × 10–6 C. 3.87 × 106 D. 387 × 10–8]

Mathematics

1 answer:

REY [17]2 years ago

8 0

Answer:

Step-by-step explanation:

You might be interested in

Can you help me with it please

Kisachek [45]

Answer:

$\frac{20}{29}$

Step-by-step explanation:

Equation of unit circle is:

$x^2 + y^2 = 1$

Plug $y = \frac{-21}{29}$ in above equation.

$x^2 + \bigg( \frac{-21}{29}\bigg)^2 = 1\\\\x^2 + \frac{441}{841} = 1\\\\x^2 = 1-\frac{441}{841}\\\\x^2 = \frac{841-441}{841}\\\\x^2 = \frac{400}{841}\\\\x =\pm\sqrt{ \frac{400}{841}}\\\\x =\pm\frac{20}{29}\\\\$

Since, point P is in the fourth quadrant.

Therefore, x - coordinate should be positive.

$\huge \red {\boxed {\therefore x =\frac{20}{29}}} \\\\$

4 0

2 years ago

Please help i am panicking

vaieri [72.5K]

Answer:

Step-by-step explanation:

5 0

2 years ago

Can somebody please help 4=-0.8n

storchak [24]

4 = -0.8n

To find n divide both sides by -0.8:

n = 4 / -0.8

n = -5

5 0

3 years ago

Read 2 more answers

What is⅖ + ⅔ in simplest form?

deff fn [24]

Answer:

1 1/15

Step-by-step explanation:

16/15

=1 1/15

......

....

6 0

2 years ago

Myles had 185 songs in his music library. He then purchased an additional 30 songs. To the nearest percent, what was the percent

Firdavs [7]

Hey!

Myles had 185 songs. He purchased 30 extra songs.

30 ÷ 185 = 0.162 = 16.2%

Answer ⇒ 16.2%

Hope this helps! :)

5 0

3 years ago

Read 2 more answers