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Tomtit [17]
3 years ago
9

**show your work please

Mathematics
2 answers:
makvit [3.9K]3 years ago
8 0

Answer:

4.6 × 10⁹

Step-by-step explanation:

I'm not really sure how I would write it down to show how I worked it out.

For me, I usually know in scientific notation, it's usually a decimal number multipled by 10 raised to a certain level of power.

So I just did 4,600,000,000 and turned that into a decimal without its extra zeros, which would be 4.6. Then I worked out how many places the decimal would be from there, which is 9 spaces behind 4.6.

Sergeu [11.5K]3 years ago
4 0

Answer:

For example the age of the Earth (see above) can be written as 4.6 X 109 years. This means that this number has 9 places after the decimal place - filled with zeros unless a number comes after the decimal when writing scientific notation. So 4.6 X 109 years represents 4600000000 years.

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6% of what number is 24
Flura [38]

Answer:

4 i think, sorry if incorrect

Step-by-step explanation:

8 0
2 years ago
Determine the equation of the circle with centre (-3;5) and passing through a point (2;-9)
UNO [17]

Therefore, the equation of circle is: (x+3)^{2}+(y+5)^{2} = 100

<h3><u>What is a circle?</u></h3>
  • All points in a plane that are at a specific distance from a specific point, the center, form a circle. In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.
  • The radius of a circle is the separation between any point on the circle and its center.
  • The radius must typically be a positive integer. Except when otherwise specified, this article discusses circles in Euclidean geometry, namely the Euclidean plane.
  • A circle, specifically, is a straightforward closed curve that separates the plane into its inner and exterior.

Here we know that(h,k) = (-3,5)but we are not given the radius.

However, we can find the radius by using the distance formula.

\sqrt{x^{2} +y^{2} }, where x=x_{1} -x_{2} and y=y_{1} -y_{2}

Putting the values, we get:

\sqrt{8^{2} +6^{2} }

The radius comes out to be:

r=10

An equation of the circle with center (h,k) and radius r is

(x-h)^{2} +(y-k)^{2} = r^{2}

Now, substituting the values, we get:

(x--3)^{2} +(y-5)^{2} = 10^{2}

Therefore, the equation of circle is:

(x+3)^{2}+(y+5)^{2} = 100

Know more about circles with the help of the given link:

brainly.com/question/10618691

#SPJ4

7 0
1 year ago
Answer please n thank you :)
Norma-Jean [14]

Answer:45

Step-by-step explanation:

6 0
3 years ago
How do you solve for x?<br> 6x+7=6
skelet666 [1.2K]
<span>6x+7=6

Subtract both sides by 7 
</span>6x+7-7=6-7

6x=-1

Divide both sides by 6 to isolate x 
6x/6=-1/6

x=-1/6 
5 0
3 years ago
Read 2 more answers
Help! <br> Expressions and equations
Dovator [93]

Answer:

1. 16−6=10

2. 4⋅2+1

3. x÷25

4. y+8=40

Explanation:

This is an equation—two expressions are connected with an .This is an expression—no equal sign. This is an expression—no equal sign. This is an equation—two expressions are connected with an equal sign.

5 0
2 years ago
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