Mathematics Middle School

The average surface temperature of a red giant star is much cooler than that of a white dwarf star. Suppose a white dwarf has a surface temperature of 1.2 x 10*4 Kelvin (abbreviated K), which is 4 times the temperature of a red giant star. WHat is the surface temperature of the red giant star?

Answers

Answer 1

Answer: 3000 Kelvin

Step-by-step explanation

Let the surface temperature of the red giant star = x

Surface temperature of a white dwarf star = 4x

4x = 1.2 × 10^4 K

= 1.2 × 10,000 K

= 12,000 K

4x = 12,000 K

x = 12000 ÷ 4

= 3,000 K

Answer 2

Answer:

soorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrry

Step-by-step explanation:

Related Questions

There are different ways to represent 2 2/3 . Select the three choices below that represent 2 2/3.

Answers

Answer:

(IN RELATION TO THE PICTURE)

[YES] [YES]

[YES] [NO ]

Step-by-step explanation:

the first number, 2, represents how many wholes are in the group, beings it is separated from the rest of the fraction by a space

the 2/3 is the fraction itself, in this case the last number, 3, is how many pieces the new whole is divided into, wile the first part is how many of those pieces are there

im running on low sleep and ill edit this answer if im wrong, but i hope this helps you with the current problem

Make 2 equivalent expressions with this expression: 9(6j + 8 + 1j)

SHOW ALL STEPS AND WORK

Please give me a good answer, I don't got time for point takers..

Answers

Answer:

54j + 72 + 9j and 63j + 72

Step-by-step explanation:

I just simplified it

So 9(6j + 8 + 1j) can be distributed to (9)(6j) + (9)(8) + (9)(1j) which equals 54j + 72 + 9j because 9*6j = 54 , 9*8 = 72 , and 9*1j = 9j

54j + 72 + 9j can also equal 63j + 72 because 54j + 9j = 63j

I hope this helped and I hope this is close to what you wanted heh :)

PLS HELP!
What is the measure of angle x?

Enter your answer in the box.
x = °

Answers

X = 133 because 180 - 47 is 133 and since it’s a line it has to equal 180

Answer:

hight is x base is 47

Step-by-step explanation:

if it has an angle your height

Another person pays $90.87 each month toward the purchase of a saxophone. After 5 months, the person has paid 65% of the total cost of the saxophone.What is the total cost,in dollars,of the saxophone?Show your work or explain your answer.

Answers

Answer:

$699

Step-by-step explanation:

90.87 * 5 = 454.35

454.35 = 65%

/65 /65

6.99 = 1%

*100 *100

$699 = 100%

Total Cost = $699

Can I get some help with this question plzz

Answers

The answer is c. (1/8)

Outcome of each flip is 1/2
Therefore 3 flips is 1/2 x 1/2 x 1/2 = 1/8
There c. 1/8 is the correct answer

Please solve them pls
Pls you don’t need to show work hurry pls it’s due soon plsss I beg I’ll give braniesy and likes

Answers

Answer:

6: degree is 1

Helps?

HELP PLEASEEEEEEE!!!!

Answers

Answer: it’s 0.796

Step-by-step explanation:

PLEASE HELP I DONT HAVE MUCH TIME

Answers

Answer:

10%

Step-by-step explanation:

Hope the helps!!!

Answer:

A) 25%

B) 6.5%

Step-by-step explanation:

A) 10/39.99≈0.2501

25%

B) 1.95/29.99≈0.0650

6.5%

Figure B is the image of figure A. Which rule describes the transformation that was applied to triangle A to create triangle B?

Answers

Answer:

reflection in the y-axis

Answer: I think the answer is B

Step-by-step explanation:

can someone help mee answer this 10pts but it will spilt between to people so your gonna get 5pts ad brainleast

Answers

Answer:

i think you do 5 ÷30

#juice wrlds not dead

Answer:

1/6 represents the 10 out of 6, but it is known as 1 in this answer because it is a choice out of the other 6.

1/6 = ?/30

1/6 · 5/5 = 5/30

5/30 large stuffed animals will be given away. I presume this is the correct answer.

The ratio of apples to oranges in Maria's basket was 1:4. There were 8 apples. How many fruits were in the basket?

Answers

Answer: 40

Ratio: Apples to Oranges is 1:4
For every 1 Apple there are 4 Oranges

8 Apples would mean 32 Oranges

Equaling 40

Answer:

40 fruits

Step-by-step explanation:

apples:oranges

1 : 4

8 : ?

If 1 = 8 then 4 = 32

8 : 32

Total fruits: 8 + 32 = 40

40 fruits

PLZ HELP :( I DONT GET IYTTTT

Answers

Answer:

the last one

Step-by-step explanation:

7 plus 3.5 equals 10.5

Answer: It ish the last one uwu chu ish welcome

Step-by-step explanation:

Kay is using cone-shaped party hats as popcorn holders. The party hats have a diameter of 10 inches and a height of 9 inches. How many cubic inches of popcorn will they hold? Use 3.14 for pi. Round your answer to the nearest Cubic inch.

Answers

Answer:

B 236in³

Step-by-step explanation:

you use the equation

V=πr²h/3

π=PI r=Radius h=height

Sense in this problem they give you diameter instead of radius you want to divide it by 2 to get one half.

so the equation used looks like this:

3.14•5²•9/3=235.5

rounded up is 236in³

Select all the sets of three side lengths that will make a triangle.
Multiple select question.

A)
3, 4, 8

B)
7, 6, 12

C)
5, 11, 13

D)
4, 6, 12

E)
4, 6, 10

Answers

Answer:

C. and E.

Step-by-step explanation:

Can't tell you how I know but I believe this is correct.

The answer is E because 6+4=10 meaning it will make a triangle

help please brainly is the reward

Answers

Step-by-step explanation:

A. First know that

[tex]rectangle \: area \: = \: len \: \times width \: \\ = 12ft\times 18ft \\ = 216 \: ft ^{2} [/tex]

[tex]sq \: area \: = ( one \: side)^{2} \\ = (13ft)^{2} \\ = 169ft^{2} [/tex]

Expression

[tex]cost \: = 169(3.50) + 216(3.50) \: [/tex]

$1347.50

Can someone please help me with this problem, I need to get it done to move on but I can't figure it out.

Answers

Answer:

4.8

Step-by-step explanation:

You divided by 1 which its 2+9=12 so you take 12 and divide which is 4.8 your welcome!

PLEASEEEEE ANSWER!!!!!!!

Answers

it’s b and f and also can i please be marked brainliest

ANSWER FOR BRAINLIESTTT

Answers

Answer:

1.QNP

2.PNO

Step-by-step explanation:

Hope this helps and have a wonderful day!!!

Answer:

1.QNP

2.PNQ

Since N is your angle

PLZ ANSWER FAST!!!! THE FIRST ANSWE GETS BRAINLIEST

Answers

Answer:

the answer is 49. bcuz 8+8= 16 and 11+11+11= 33. 33+16=49

Step-by-step explanation:

what is the answer to this question

Answers

Find unit rate (how much per yd^2)
7.5 bags to cover 12yd^2
Divide the bags to yds
7.5/12 = 0.625 bag per square yard
0.625 is less than 1
Solution: less than 1 bag

Would be the second choice: Less then one bag

helppppppppppp plzzzzzzz

Answers

Answer:

Step-by-step explanation:

Answer-1 Range= Highest value - Lowest value

So,

85-79=6 is the range of data.

Answer-2 These four numbers are above 81 those are 82,83,84,85

So boys above 81 = 9

Answer-3. 4 were having pulse rate 83.

Help me again !!!
————————————————————————————————

Answers

A: The expression is equivalent because it is an Associative property of Multiplication. B: The expression is not equivalent because the Commutative property does not hold for division. || I HOPE THIS HELPS!!

PLEASE HELP ASAP IM CONFUSED!!

Answers

Answer:

B. 1152

Step-by-step explanation:

First you do the base. 24 x 24 is 576. Now you do each triangle. 12 x 24 = 288 and 288 divided by 2 is 144. 144 x 4 = 576. 576 + 576 = 1152.

I hope this helps! <3

I dont now sorry
Bye

PLZZZ help with this its pretty simple!

Answers

Answer:

-11m^2 +4m

Step-by-step explanation:

5m^2-16m^2=-11m^2

11m-7m=4m

Answer:

4m- 11m²

Step-by-step explanation:

hope this helps

A group of four co-workers surprises a friend with a trip to a local buffet restaurant. The cost per person for the five people is $12.80. The group will leave a 20% tip, and the four co-workers will split the cost of the tip evenly. How much will each co-worker contribute to the tip?

No random answers please!

Answers

$0.64

———————————————————

Answer:

I think it will be 3.20%

Step-by-step explanation:

Can someone answer this? Thanks a lot

Answers

Answer: 9 dollars

Step-by-step explanation: Mean is average so just add, and divide.

hey, could someone help me?

Answers

Answer:

Juan rode more slowly

Step-by-step explanation:

Have a nice day

Juan rode slower .

Explanation: I say Juan because Rita’s graph is steeper which means she went faster, while Juan’s isn’t as steep.

Tell whether the angles are complementary or supplementary. Then find the value of x.

Answers

It is complementary and value of x is 20

the angles are complementary because they add up to 90° because of the red square. x=20

Step-by-step explanation:

4x-5+15=90

4x+10=90 subtract 10 from each side

then you get left with 4x=80

divide 4 from each side then you get left with x=20 and to check just substitute 20 where x is so 4(20)-5= 80-5=75 +15=90.

Please help me! Have to get it done before 5

Answers

I’m not sure about the first 2

Answer:

I am not sure about the second one but the first question that ask if the data is linear, the answer is no since even though the change in x-values is constant but the change in y-value is inconsistent.

Hope this helps!

Mr. O’Reilly has a cup of coffee at a diner. The cup of coffee costs $1.25, and he leaves a 60% tip. How much does he leave for a tip?

please someone help. dont send in fake answers or they will be reported.

Answers

Answer:

He leaves $0.75

Step-by-step explanation:

10%=0.125

0.125x6= 0.75 = 60%

$0.75 is the answer for this equation

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At what altitude above the Earth's surface is the acceleration due to gravity equal to g/5?Please put the answer like this below.h = ? m certificates representing bundles of the stock of a non-u.s. firm are called Which of the following is an example of both a money market and a primary market transaction?a.An investor sold his 1000 CSL ordinary shares in ASX.b.Ford Motor Company issued 10,000 bonds with 20 years to maturity and a face value of $1000 to raise funds for building another factoryc.Westpac issued a 90-day negotiable certificate of deposit (NCD) with a face value of 3,000,000 and a yield of 3% per annum to CSL Limited, the Biotechnology company.d.Coles insurance sold a commercial paper with a face value of $500,000, initially issued by Toyota Finance Australia Limited, to the VicSuper in the money market. A 26-year-old female patient was involved in an automobile accident and the air bag deployed, fracturing her nasal septum. 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