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natulia [17]
3 years ago
6

Find the product : (6x-1) (5x+2) =

Mathematics
2 answers:
svp [43]3 years ago
3 0

Answer:

30x^2+7x-2

Step-by-step explanation:

Use the foil method/distribute:

(6x-1)(5x+2):

Breaks apart into: (6x)(5x) = 30x^2

Multiply the next term:(6x)(2)=12x

Then the next: (-1)(5x)=-5x

Last term: (-1)(2)=-2

Combine them to get: 30x^2+12x-5x-2

Simplify: 30x^2+7x-2

Alinara [238K]3 years ago
3 0

Answer:

Step-by-step explanation:

The solution is in the attached file

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Evaluate each function at the given value <br> f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13 at n = - 2
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Answer:

  • 7

Step-by-step explanation:

<h3>Given</h3>
  • f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13
<h3>To find </h3>
  • f(-2)
<h3>Solution</h3>

<u>Substituting n with -2</u>

  • f(-2) =
  • (-2)^4 + 5(-2)^3 + 2(-2)^2 - 5(-2) + 13 =
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9. Hue wants to buy two necklaces, one for
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Answer:

$71.59

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43.25+26.25

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69.5*1.03

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3 years ago
6.50 is 25$ of what number?
Ivenika [448]

Answer:

3.85

Step-by-step explanation:

6.50 goes into 25 how many times

6.50×?=25

6.50 divided by 25 = 3.846153846

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An isosceles right triangle has legs of equal length if the hypotenuse is 10 cm long find the length of each leg
ICE Princess25 [194]

Since this is a right triangle, we know we have to use the Pythagorean Theorem: A² + B² = C² , where A and B = the legs of the triangle (which are shorter than the hypotenuse) and C = the hypotenuse.

In this isosceles triangle, A = B (because the legs are the same size) and C is 10cm longer than A and B.

Thus we get the following,

A = x

B = x

C = x + 10

We simply plug in these variables into the equation and solve for x:

x² + x² = (x+10)²

2x² = x² + 20x + 100

x² - 20x - 100 = 0

We solve for x by completing the square:

(x² - 20x + 100) - 100 = 100

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(x-10)² = 200

x - 10 = √(200)

x - 10 = 10 √2

x = 10 + 10√2 = 24

Finally,

A ≈ 24 (or 10 + 10√2)

B ≈ 24 (or 10 + 10√2)

C ≈ 24 + 10 ≈ 34 (or 10 + 10√2 + 10 = 20 + 10√2)

3 0
3 years ago
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