There are about 3×1011 stars in our galaxy and about 100 billion galaxies in the observable universe. Suppose every galaxy has as many stars as ours. How many stars are in the observable universe? Write in scientific notation.

Answers

Answer 1

The number of stars in the observable universe is; 3.033 × 10¹⁴

Since there are about 3 × 1011 stars in our galaxy; we can rewrite that to be;

3033 stars or

3033 stars or3.033 × 10³ stars in our galaxy.

However, there are about 100 billion galaxies in the observable universe.

We can rewrite that in scientific notation form so that we have;

100 × 10⁹ or

100 × 10⁹ or 10¹¹ galaxies in the observable universe.

Ultimately, since our galaxy is one of the 10¹¹ observable galaxies in the universe; the number of stars in the observable universe is;

3.033 × 10³ × 10¹¹

By the laws of indices;

3.033 × 10¹⁴.

Therefore, the number of stars in the observable universe is; 3.033 × 10¹⁴.

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Related Questions

I NEED HELP PLEASE ILL GIVE YOU BRAINLIEST T-T

Answers

Answer:

1 true

2 false

3 true

4 false

5 true

6 true

Step-by-step explanation:

A math test had 26 questions. The questions were either true/false or multiple choice. The true/false questions were worth 2 points each and the multiple choice were worth 5 points each. If the test is worth 100 points, how many of each type of question are included on the test?

Answers

Answer:

True/ false type 10 questions

Multiple choice type 16 questions  

Step-by-step explanation:

Using the given formation we can make equations to solve for the number of questions of either type is to be included

let the no of true/false be =x

let the number of multiple choice to be included be = y

x + y=26  .............(1)

now making the equation of points

2x + 5y = 100 .........(2)

substitute y = 26-x from first equation in the second equation

2x + 5(26 - x ) = 100

2x - 5x + 130 = 100

3x=30

x=10

y =26-10=16

[tex]\frac{2}{5} x+\frac{1}{2} =\frac{3}{4}[/tex]

Answers

Answer:

[tex]x = \frac{5}{8}[/tex]

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

What is the value of x in the equation x*3 = 27 512 ?

Answers

Answer:
9,170.67

Explanation:
27,512 divided by 3 = 9,170.67
X=3

New equation:
9,170.67 * 3 = 27,512
Sorry if this is wrong

please help asap, the question is in photo

Answers

Answer:

its 1

Step-by-step explanation:

i is always going to =1 no matter what is with it

unless you are taking the square root from it

I hope this helps you! :)

Answer:  The answer is  -i

Step-by-step explanation:

They are equal hope this helps

Simplify this expression. 17 - 12x - 18 - 5x = ??​

Answers

17 -12x - 18 - 5x=
-1 - 17x =
-1 = 17x

Find (x - 3)(2x - 1) using the table of products. Write your answer in standard form.

Answers

Answer:

top left is 2x²

top right -6x

bottom left -1

bottom right 3

100 POINTS!!!!!!!!!!! ( I NEED FAST ANSWERS ) Which of the following functions model the data given in the table below?
х
2
3
4
5
6 y
-5
-7
-9
-11
-13

Answers

Answer:

I thinkkk its Option 2

Step-by-step explanation:

Answer:

Option 2

Step-by-step explanation:

The line is linear and the y-intercept hits at -1 so option 2 is correct.

Someone help me please ill mark brainliest

Answers

Answer:

B?

Step-by-step explanation:

A B and C are the same

How many solutions are there for the system of equations shown on the graph?

A. No solution
B. One solution
C. Two solutions
D. Infinitely many solutions

Answers

Answer:

D

Step-by-step explanation:

There can be infinite solutions

A. I’m pretty sure :)))

Simplify by dividing -5/8 divided by -3/4

Answers

Answer to the problem is 5/6

HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :3
I have to do what the image below says but I don't know how to write it:,)

Answers

Answer:

To write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. This is the value of m in the equation. Next, find the coordinates of the y-intercept--this should be of the form (0, b). The y- coordinate is the value of b in the equation.

1. What type of function is the following graph?
a. Exponential
B. Quadratic
C. Linear
d. Absolute Value

Answers

Answer:D

Step-by-step explanation:

Jenny wants to buy a new dress for her first school dance she barrows $25.63 from her sister to help pay for the dress then Jenny earns $16.33 helping her dad organize his home office if she gives all the earnings to her sister Jenny will still owe her sister $

Answers

Answer:

Jenny will owe her sister $9.30

Step-by-step explanation:

Subtract the money she earned from her dad from what she borrowed from her sister. $25.63-$16.33=$9.30 :)

g + 10 = 3g

Translate into a sentence !! HELPPPPP

Answers

The sum of g and 10 equals the product of 3 and h

A rectangular room is covered in 5 12 square feet of carpet. If the length of the room is 16 feet,
what is the width of the room?

Answers

Answer:

long

Step-by-step explanation:

14ft

(5.31 x 103) – (2.8 x 103)

Answers

Answer:

258.53

Step-by-step explanation:

Hope This Helps!

Plz Mark Brainliest!

Answer:

I believe it is 258.53 ,,,,

Graph the line through 2,3 that is Parallel to the line with the equation 3x-y=2

Answers

Answer:

y=3x-3

Step-by-step explanation:

first we turn in the stander from to y incept form

then you plug in the x and y, for time here, i am not goona put the steps more

msg me if you need steps

Two unidentified flying discs are detected by a receiver. The angle of elevation from the receiver to each disc is 39.48 degree. The discs are hovering at a direct distance of 826m and 1.296km from the receiver. Find the difference in height between the two unidentified flying discs, to the nearest meter.

Answers

Answer:

The answer is "298.83 m"

Step-by-step explanation:

Its gap from its transmitter from each disc comprises of 2 triangles. Its horizontal segment via disc to vertical, and longitudinal segment. Disk height, h, is parallel to a horizontal disc Wink including its line across recipient to disc or horizontal 39. 48^{\circ}

[tex]\to 39. 48^{\circ} = \frac{h_1}{826 \ m}\\\\ \to 826\ m (\ sin 39. 48^{\circ} ) = h_1\\\\ \to 525.18 = h_1\\\\[/tex]

if:

[tex]\to \sin 39. 48^{\circ} = \frac{h_2}{1.296 \ km}\\\\ \to \sin 39. 48^{\circ} (1296 \ m) = h_2\\\\ \to 824.01 = h_2\\\\\to h_2 - h_1 = 824.01 - 525.18\\\\[/tex]

                  [tex]= 298.83 \ m[/tex]

write in standard form 9 times 100

Answers

Answer:

900

Step-by-step explanation:

100 x 9 = 900

cuase 1 x 9 = 9 and add two zero 900

Answer:

9*10²

Step-by-step explanation:

10*10=100

9*100=900

CAN SOME ONE HELP ME ASAP

Answers

Answer:

B

Step-by-step explanation:

1/5 is larger than 1/10

hope this helps ^^

if it did pls mark brainliest if possible

The distance between the Sun and each planet in our solar system varies because the planets travel in elliptical (oval) orbits around the Sun rather than completely circular ones.

Here is a table of the average distance and the variation in the distance for the five innermost planets in our solar system:

Average Distance and Variation
Planet Name Average Distance Variation
Mercury 36.0 million miles 7.39 million miles
Venus 67.2 million miles 0.43 million miles
Earth 93.0 million miles 1.55 million miles
Mars 142 million miles 13.2 million miles
Jupiter 484 million miles 23.2 million miles


"Average distance" means the mean distance that planet is from the sun over the course of its orbit, and "variation" means how far it varies from that mean. For example, if a planet had an average distance of 5 miles and a variation of one mile, it would have distances between 4 and 6 miles at different times.

a) Write and solve an inequality to represent the range of distances that can occur between the Sun and one of the planets from the table (your choice). Show your steps/process.

b) Why is this best represented as an inequality rather than an equation? Explain in at least 3 sentences.

Answers

Answer:

Hope this helps

Step-by-step explanation:

They describe how (1) planets move in elliptical orbits with the Sun as a focus, (2) a planet covers the same area of space in the same amount of time no matter where it is in its orbit, and (3) a planet's orbital period is proportional to the size of its orbit (its semi-major axis)

Answer:

because

Step-by-step explanation:

help with it dont know

What number(s) have the absolute value of 7? Why? (Must explain to receive credit)

Answers

Answer:

Why is | 7 | the absolute value of the number 7?

The absolute value of a number is how far away the number is from zero. The absolute value is ALWAYS positive.

What is the absolute value of -7?

The negative version of the number is also | 7 |

Step-by-step explanation:

Answer:

7 and -7

Step-by-step explanation:

Absolute value is the distance a number is from 0 on a number line. If you go back 7 spaces from positive 7 you will land at 0, and if you go up 7 spaces from -7 you will land at 0.

I NEED HELP NOW 50 POINTS

Answers

Answer:

x1:0 , x2 : 1

Step-by-step explanation:

Answer:

A c is 1 and equation B d is  1

is 800 cm greater than 8 cm

Answers

Answer:

100

Step-by-step explanation:

Colin and his friends are celebrating Colin's birthday at Adventure Zone, which has
trampolines, mini golf, laser tag, and an arcade. Colin's mom gives 16 arcade tokens to each
kid at the party. In all, she gives out 112 tokens.
Use an equation to find the number of kids at Colin's party.
kids
Answer is 7 I promise

Answers

Answer:

I agree 7

Step-by-step explanation:

Given that BD is the median of ▵ABC, and that ▵ABC is isosceles,
congruence postulate SSS can be used to prove which of the following?

A. ∠BAD = 45°
B. ▵BAD ≅ ▵BCD
C. ▵ABC is an equilateral triangle
D. ▵ABC ≅ ▵BCD

Answers

Answer:

B

Step-by-step explanation:

AP3X

pog

A jar contains 50 coins, all either 2 cents or 5 cents. The total value of the coins is $1.87.
How many 2 cents coins are there?

Answers

Answer:

there would be 21 cents

Answer:

they would be 21 cents coins

HOPE IT WILL HELP U!

Which ordered pair or pairs are solutions to the equation? Select ALL that apply.
Y-1= 1/6(x+5)


A. (1,2)

B.(1,-2)

C.(5,0)

D.(5,6)

Answers

Answer:

c

Step-by-step explanation:

its c because i got 100% on the topic test

The basketball gym at Dustin's school was built in the 1940s and needs a lot of repairs. So, the school is asking families for donations to build a new gym. Dustin convinced some local businesses to match a fraction of the families' donations. There is a proportional relationship between the amount of money a family donates (in dollars), x, and the matching contribution (in dollars) from local businesses, y. When a family donates $12, the businesses contribute $9. Write the equation for the relationship between x and y.

Answers

Answer:

The equation representing the relationship between x and y is that;

4y = 3x

Step-by-step explanation:

Here, we want to write a relationship.

From the question, we are told that the amount donated by the family which is x dollars is proportional to what local businesses gave.

From the question, there was an example in which a family gave $12 and local businesses gave $9

So let us establish a relationship using ratio of x to y

Thus;

12/9 = x/y

12y = 9x

4y = 3x

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