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LenKa [72]
3 years ago
10

[OU.03]The table below shows the initial masses of four stars.

Mathematics
2 answers:
Dmitry_Shevchenko [17]3 years ago
7 0
Choices:
<span>Star 1, Star 2, Star 3, Star 4
Star 1, Star 3, Star 2, Star 4
Star 4, Star 3, Star 2, Star 1
Star 4, Star 2, Star 3, Star 1
</span>
My answer would be: <span>Star 4(0.3), Star 2(0.9), Star 3(5), Star 1(9)</span>

Rom4ik [11]3 years ago
4 0

Answer:  Star 1> Star 3 >Star 2> Star 4

Step-by-step explanation:

Since according to the given table ,

Mass of star 1 = 9 unit

Mass of star 2 = 0.9 unit

Mass of star 3 = 5 unit

Mass of star 4 = 0.3 unit.

Since mass is directly proportional to the time. ( E= m c^2)

Here, 9 unit  > 5 unit  > 0.9 unit  > 0.3 unit ( order of masses)

Therefore sequence of the stars according to their increasing order of their time.

Star 1> Star 3 >Star 2> Star 4


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Does choosing a blue marble represent the complement event of choosing a red marble? Explain.
Arada [10]

Answer:

Below is the sample response

Step-by-step explanation:

The complementary event for choosing a red marble is choosing a blue or purple. The total number of marbles is 5. The probability of choosing a red marble is 1/5, and the complement would be 4/5. That is not the same as choosing a blue marble.

3 0
3 years ago
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What is the solution to the equation w+6=5w-10
docker41 [41]

Answer:

w = 4

Step-by-step explanation:

you would do this by re-arranging the equation

6 = 5w-10-w (move w to the other side)

6 = 4w-10 (because 5w-w = 4w)

6+10=4w (move 10 to the other side)

16 = 4w (add 6 and 10)

4 = w (divide both sides by 4)

6 0
3 years ago
EASY MATH QUESTION <br><br> NEED HEP
Radda [10]

Answer:

f(-3)= 19

Step-by-step explanation:

you have to use substitution. Every time that you see an x, plug it in for a -3

f(x)= -5x+4

f(-3)= -5(-3)+4

f(-3)= 19

6 0
3 years ago
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If hot and cold water taps are turned on altogether, a bath is filled in three minutes but if the cold tap was only half opened
Anvisha [2.4K]

9514 1404 393

Answer:

  12 minutes

Step-by-step explanation:

Let c and h represent the filling times for the cold and hot taps, respectively. When the cold tap is 1/2 open, we presume that means the filling time becomes 2c.

In terms of baths per minute, the relationships are ...

  1/c + 1/h = 1/3

  1/(2c) +1/h = 1/(3 +1.8) . . . . . 1:48 min:sec is 1.8 minutes

Subtracting the first equation from twice the second, we get ...

  2(1/(2c) +1/h) -(1/c +1/h) = 2(1/4.8) -(1/3)

  1/h = 2/4.8 -1/3 = 1/12

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It takes the hot tap 12 minutes to fill the tub alone.

3 0
3 years ago
Miquel created the table below to show how he uses the money he earns at work
lara [203]

<u>Complete Question with table is attached</u>

<u>Answer:</u>

Miguel will save money of $90 if he earns $120.00

<u>Step-by-step explanation:</u>

The figure attached clearly shows the ratio of his earnings and savings. We have to find what would be the savings amount if he earn $120.00. So, first we have to calculate the percentage of ratio of his earnings and savings. As per the data given in the figure,

If he earns $10.00, he saves $7.50, calculate %amount he saves as below,

           \frac{\$ 7.50}{\$ 10.00} \times 100=0.075 \times 100=75 \%

Likewise, calculate for all given data. If he earns $50.00 then he saves $37.50

           \frac{\$ 37.50}{\$ 50.00} \times 100=0.75 \times 100=75 \%

If he earns  $150.00 and save $112.50,

           \frac{\$ 112.50}{\$ 150.00} \times 100=0.75 \times 100=75 \%

So, from all above, it clearly tells that Miguel saves 75% of amount from his earnings. Now, given earnings as $120.00. By finding 75% of $120.00, we can find his savings in that amount. So,

             \frac{75}{100} \times \$ 120=0.75 \times 120=\$ 90

6 0
3 years ago
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