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sattari [20]
3 years ago
7

(y^2+y)(x^4+3x^3-2x^3)=y^2(x^4+3x^3-2x^3)+y(x^4+3x^3-2x^3( is an example of:

Mathematics
1 answer:
Andreas93 [3]3 years ago
5 0

Answer:

B. Distributive property

Step-by-step explanation:

The distributive property says

(a+b)\cdot c=a\cdot b+b\cdot c

You are given the expression

(y^2+y)(x^4+3x^3-2x^3)=y^2(x^4+3x^3-2x^3)+y(x^4+3x^3-2x^3)

Denote

c=x^4+3x^3-2x^3

then your expression is

(y^2+y)\cdot c=y^2\cdot c+y\cdot c

Here, you can see that distributive property was used.

Now, change c into the x^4+3x^3-2x^3 again

(y^2+y)\cdot (x^4+3x^3-2x^3)=y^2\cdot (x^4+3x^3-2x^3)+y\cdot (x^4+3x^3-2x^3)

to get the distributive property for the initial expression

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In a parallelogram there is 7in and 3in
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Answer:

Assuming that 7 inches and 3 inches are the base and height of the parallelogram, the answer would be 21 inches squared.

Step-by-step explanation:

The formula to find the area of a parallelogram is base times height. So, 7 times 3 equals 21 square inches. If this helps, please rank Brainlies. Thanks!

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3 years ago
Solve : |1/5x - 7 | =4
Mnenie [13.5K]

Answer:

x = 55 or x = 15

Step-by-step explanation:

Solve Absolute Value.

We know that either 1/5x - 7 = 4 or 1/5x - 7 = -4.

1/5x - 7 = 4

1/5x - 7 + 7 = 4 + 7

1/5x = 11

1/5x (5) = 11 (5)

x = 55 (one possibility)

1/5x - 7 = -4

1/5x - 7 + 7 = -4 + 7

1/5x = 3

1/5x (5) = 3 (5)

x = 15 (second possibility)

6 0
3 years ago
D. If the speed of a body is increased four times, how will its kinetic energy be affected?
const2013 [10]

Answer:

E

Step-by-step explanation:

8 0
3 years ago
the nail shop purchases nail polish in 13- milliliters bottles. Find the total capacity of 1000 bottles in liters
matrenka [14]
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John can play 12 songs on his guitar but learns 1 new song every week. Aiden can play 4 songs but learns 2 every week
chubhunter [2.5K]

Given :

John can play 12 songs on his guitar but learns 1 new song every week. Aiden can play 4 songs but learns 2 every week.

To Find :

How many weeks will it be before Aiden knows as many songs as john?

Solution :

Let, after x weeks Aiden know a songs and John know j songs.

The linear equation for both the situation is :

a = x + 12       .....( For Aiden )

j = 2x + 4       ......( For John )

We need to find in which week Aiden knows as many songs as John.

For this , a = j

x + 12 = 2x + 4

x = 8

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3 years ago
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