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3 years ago

7

Planet X is 1/2 of a light-year away from Earth. Planet Y is 3/10 of a light-year away from Earth. How much farther away is Plan

et X?

2 answers:

kakasveta [241]3 years ago

8 0

Answer:

1/2= 5/10

5/10 - 3/10 = 2/10 or 1/5

so planet X is 1/5 of a light-year closer

Step-by-step explanation:

Sindrei [870]3 years ago

4 0

Answer:

5/10

Step-by-step explanation:

Simplified

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Plz answer both questions 15 points

anyanavicka [17]

Answer:

If the signs of rational numbers are same, then the answer is positive.

If the signs of rational numbers are different, then the answer is negative.

Step-by-step explanation:

Consider the provided information.

A: When multiplying or dividing rational numbers, when will the answer be positive?

If we are multiplying or dividing rational numbers the answer will be positive if and only if both the rational numbers have same sign.

For example: Multiply 2 and 4.

2×4=8 (same sign)

or

Multiply -2 and -4.

-2×-4=8 (same sign)

8 is a positive rational number.

Now divided 2 and 4.

$\frac{2}{4} =\frac{1}{2}$

or

Divided -2 and -4.

$\frac{-2}{-4} =\frac{1}{2}$

1/2 is a positive rational number.

Hence, If the signs of rational numbers are same, then the answer is positive.

B: When multiplying or dividing rational numbers, when will the answer be negative?

If we are multiplying or dividing rational numbers the answer will be negative if and only if both the rational numbers have different sign.

For example: Multiply 2 and -4.

2×-4=-8 (different sign)

or

Multiply -2 and 4.

-2×4=-8 (different sign)

-8 is a negative rational number.

Now divided 2 and -4.

$\frac{2}{-4} =-\frac{1}{2}$

or

Divided -2 and 4.

$\frac{-2}{4} =-\frac{1}{2}$

-1/2 is a negative rational number

Hence, If the signs of rational numbers are different, then the answer is negative.

3 0

3 years ago

One of the tables shows a proportional relationship. Graph the line representing the proportional relationship from this table.

sergey [27]

Answer: have you found the answer if so please tell me

6 0

3 years ago

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Help me pleaseeeeeeeeeeeeeeeeeeeeeeee

Natali [406]

Answer:

D

Step-by-step explanation:

on a graph, look at the points (-3,0) (-1,0) and (2,0). Then, see if the line passes through those points. You will see that graph D passes through all those points. If you're confused on how to turn the (x,y) format into points on a graph, remember that the first point tells you how left/right you want to be, and the second point tells you how up/down you want to be.

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2 years ago

Write this number using scientific notation. 426.7

natali 33 [55]

Answer:

426.7*10^0

Step-by-step explanation:

5 0

3 years ago

How many ways can six books be aranged on a shelf

kompoz [17]

Actually, it means from left to right and such. For example:

(book1) (book3) (book5) (book6) (book2)

So, Because there are six books to arrange on the shelf, there are six stages in the problem. You must decide what the first book will be, what the second book will be, what the third book will be, and so on.

There are 6 choicses for the first book, 5 choices for the second book, 4 choices for the third book, and so on.

6 x 5 x 4 x 3 x 2 x 1 = ?

= !6

=720

Six books can be arranged 720 different ways.

5 0

3 years ago