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3 years ago

Amazon was valued at 430 billion dollars. Write this number in scientific notation

Mathematics

1 answer:

pshichka [43]3 years ago

3 0

Answer:

430 billion (430,000,000,000) is 4.3 x 10^11 in scientific notation

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Please help me. i will mark you as most brilliance and give you 5 stars! Please be specific when answering. thank you! :)

serg [7]

Step-by-step explanation:

5x+52=9x+20

subtract 5x on both sides

subtract 20 on both sides

32=4x

divide by 4 on both sides

x=8

plug in x to the equations for A, D, and C

A and D are 92°

C is 56°

B and C will add up to 90, so

90-56=34°

13y-6=34

add 6 on both sides

13y=40

divide by 13

y=40/13 (I don't wanna calculate that)

7 0

2 years ago

Choose the appropriate description for the equation.

nignag [31]

Circle
^^^^^^^^^^^^^^^^

5 0

3 years ago

Read 2 more answers

Find the length of the arc and express your answer as a fraction times pie

Elina [12.6K]

Solution:

Given a circle of center, A with radius, r (AB) = 6 units

Where, the area, A, of the shaded sector, ABC, is 9π

To find the length of the arc, firstly we will find the measure of the angle subtended by the sector.

To find the area, A, of a sector, the formula is

$\begin{gathered} A=\frac{\theta}{360\degree}\times\pi r^2 \\ Where\text{ r}=AB=6\text{ units} \\ A=9\pi\text{ square units} \end{gathered}$

Substitute the values of the variables into the formula above to find the angle, θ, subtended by the sector.

$\begin{gathered} 9\pi=\frac{\theta}{360\degree}\times\pi\times6^2 \\ Crossmultiply \\ 9\pi\times360=36\pi\times\theta \\ 3240\pi=36\pi\theta \\ Divide\text{ both sides by 36}\pi \\ \frac{3240\pi}{36\pi}=\frac{36\pi\theta}{36\pi} \\ 90\degree=\theta \\ \theta=90\degree \end{gathered}$

To find the length of the arc, s, the formula is

$\begin{gathered} s=\frac{\theta}{360\degree}\times2\pi r \\ Where \\ \theta=90\degree \\ r=6\text{ units} \end{gathered}$

Substitute the variables into the formula to find the length of an arc, s above

$\begin{gathered} s=\frac{\theta}{360}\times2\pi r \\ s=\frac{90\degree}{360\degree}\times2\times\pi\times6 \\ s=\frac{12\pi}{4}=3\pi\text{ units} \\ s=3\pi\text{ units} \end{gathered}$

Hence, the length of the arc, s, is 3π units.

4 0

9 months ago

What coefficient would you get for the x terms on the right side of 3x+15=2x+10+x+5

Zielflug [23.3K]

Answer:

x=0

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Please help! will friend! and branliest!

Akimi4 [234]

Answer:

Option A, no trend

Step-by-step explanation:

<u>Since the points are all over the graph, that means that there is no trend.</u>

<u />

If all the points followed a straight line toward positive infinity, it would be positive trend.

If all the points followed a straight line toward negative infinity, it would be negative trend.

Answer: Option A, no trend

7 0

2 years ago