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Novosadov [1.4K]
2 years ago
10

What is the result when the sun 4x^2+8x-1 and 7x^2-3x+8 is multiplied by 5x^2?

Mathematics
1 answer:
Agata [3.3K]2 years ago
5 0

Answer:

55x^4+25x^3+35x^2

Step-by-step explanation:

5x²(4x^2+8x-1 and 7x^2-3x+8)

Applying distribution property,we have

  • 5x^2(4x^2+8x-1 + 7x^2-3x+8)
  • (5x^2)*(4x^2)+(5x^2)*(8x)+(5x^2)*(-1)+(5x^2)(7x^2)+(5x^2)*(-3x)+(5x^2)*(8)

Simplifying them,we have

  • 20x^4+40x^3−5x^2+35x4−15x^3+40x^2
  • 55x^4+25x^3+35x^2
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Which points are 4 units apart?
xz_007 [3.2K]

The points that are 4 units apart are B and D

<h3>Complete question</h3>

Which points are 4 units apart? On a coordinate plane, point A is at (-2, 4), point B is at (3, -6), point C is at (-1, 0), point D is at (3, -2).

B and C

C and D

A and C

B and D

<h3>How to determine the points?</h3>

To do this, we simply calculate the distance using the following equation

d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2

Using the given points, we have:

BC = \sqrt{(3+ 1)^2 + (-6 -0)^2} = 7.2

CD = \sqrt{(-1 - 3)^2 + (0 +2)^2} = 4.5

AC = \sqrt{(-2 + 1)^2 + (4 -0)^2} = 4.1

BD = \sqrt{(3 - 3)^2 + (-6 +2)^2} = 4

Hence, the points that are 4 units apart are B and D

Read more about distance at:brainly.com/question/15821277

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2 years ago
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Harman [31]

Answer:

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Step-by-step explanation

3 0
3 years ago
How to write z times 5 as an algebraic expression
ra1l [238]

Answer:

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Step-by-step explanation:


7 0
3 years ago
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The length of a rectangle is 5 m less than twice the width, and the area of the rectangle is 52 m^2. Find the dimensions of the
lys-0071 [83]

length is 8m

Width is 6.5m

<u>Explanation:</u>

Let, width = b

So, length = 2b-5

area = 52m^{2}

We know,

area of rectangle = length X width

So, 52m^{2} = (2b-5) X b

On solving the above equation, we get

Width, b = 6.5m

length, l = 8m

4 0
3 years ago
Please help me out! I keep getting the wrong answer
Tamiku [17]

The total amount of people who ordered a large is 5 + 12 + 8 = 25 people.

The amount of customers who bought a large cold drink is 5.

The probability that someone bought a large cold drink is 5 out of 25 people.

This is 5/25 which is 1/5 which is .2

Convert the decimal to a fraction by multiplying by 100 and adding a percent sign at the end.

.2 x 100 = 20%

Edit:

The probability was supposed to be if the customer ordered a cold drink based on people who ordered large.

The amount of people who ordered a large drink is 22 + 5 = 27.

The amount of people who ordered a cold large is 5.

To find the percent, divide the people who ordered cold large by the total people who ordered large.

This would be 5/27 which in decimal form is .185185

To convert to a percent, multiply by 100 and add a percent sign after it.

.185185 x 100 = 18.5185%

The question says to round to the nearest percent so your answer is:

19%

6 0
3 years ago
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