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3 years ago

Help me please and thank you

Mathematics

1 answer:

MrRa [10]3 years ago

7 0

B because when you combine all of those terms, x^4 + 7x^4, and 3x^3 - 2x^3, and x^2 - 5x^2, and x - x, and 1 you get 8x^4 + x^3 - 4x^2 + 1.

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Select ALL the correct answers. Given that line AB is parallel to line DE, determine how triangle ABC and triangle EDC can be sh

Evgen [1.6K]

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3 years ago

The regular octagon below has a perimeter of 80m What is the length of one side of the octagon?

icang [17]

Answer:

10 m

Step-by-step explanation:

Since all of the side lengths of a regular octagon are equal and there are 8 sides on an octagon, the answer would be 80 / 8 = 10 m.

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3 years ago

What is the product of (3.8 x 106) and (6 x 103)?

Troyanec [42]

It would be A. 2.28 x 10^9

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3 years ago

Factor completely.<br> 150m^2nz+20mn^2c-120m^2nc-25mn^2z

Anika [276]

Answer:

The factor form is:

$5mn\left(6m-n\right)\left(5z-4c\right)$

Step-by-step explanation:

Here we have to find the factor of the expression:

$150m^2nz+20mn^2c-120m^2nc-25mn^2z$

So we need to take out the common terms, as we do for finding the greatest common factors.

Now the expression that is given can be re-written as:

$150m^2nz+20mn^2c-120m^2nc-25mn^2z\\=150mmnz+20mnnc-120mmnc-25mnnz\\=30\cdot \:5nmmz+4\cdot \:5nmnc-24\cdot \:5nmmc-5\cdot \:5nmnz$

Next, we will find the common terms, as follows;

$30\cdot \:5nmmz+4\cdot \:5nmnc-24\cdot \:5nmmc-5\cdot \:5nmnz\\=5nm\left(30mz+4nc-24mc-5nz\right)\\$

Now we will factorise the expression:

$\left(30mz+4nc-24mc-5nz\right)\\$

as follows;

$\left(30mz+4nc-24mc-5nz\right)\\=6m\left(5z-4c\right)+n\left(4c-5z\right)\\=\left(-4c+5z\right)\left(6m-n\right)\\$

So the final factor form is:

$150m^2nz+20mn^2c-120m^2nc-25mn^2z=5mn\left(6m-n\right)\left(5z-4c\right)$

8 0

3 years ago

PLEASE HELP ME WITH THIS. ITS A TIMED HOMEWORK QUESTION I ONLY HAVE 20 MINTUES

const2013 [10]

Answer: 7^17

Step-by-step explanation:

(7^5 * 7^3)^4 = 7^32

7^32 * 7^-2 = 7^30

7^-7 * 7^20 = 7^13

7^30 / 7^13 = 7^17

Look up indices laws to revise this.

8 0

3 years ago