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Romashka-Z-Leto [24]
3 years ago
9

Which polynomial is equivalent to (x^3+2x^4+5x^5-2x-1)-(-7x-x^2+9x^3+2x^4)?

Mathematics
1 answer:
podryga [215]3 years ago
6 0

Answer:

The correct answer is option B.

5x⁵ + -8x³ + x² + 5x -1

Step-by-step explanation:

It is given that,

(x³ + 2x⁴ + 5x⁵ - 2x - 1) - (-7x - x² + 9x³ + 2x⁴)

<u>To find the subtraction result</u>

(x³ + 2x⁴ + 5x⁵ - 2x - 1) - (-7x - x² + 9x³ + 2x⁴)

 = x³ + 2x⁴ + 5x⁵ - 2x - 1 + 7x + x² - 9x³ - 2x⁴)

 = 5x⁵ + 2x⁴ - 2x⁴ + x³ - 9x³  + x²- 2x + 7x -1

 = 5x⁵ + -8x³ + x² + 5x -1

The correct answer is option B.

5x⁵ + -8x³ + x² + 5x -1

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What is the volume of the triangular prism? A triangular prism. The base of the triangular face is 5.4 centimeters and the heigh
IceJOKER [234]

Answer:

The volume of the triangular prism is <em>51</em><em>.</em><em>84</em><em> </em><em>cm</em><em>^</em><em>3</em>.

Step-by-step explanation:

The formula of the volume of a prism is:

V = Ah

where:

V = Volume of prism

A = Area of uniform cross-section or base of prism

h = Height of prism = 6 cm

We can substitute the information given in the problem into this formula.

To find A, we need to find the area of the triangular base.

A = bh / 2

where:

b = Base of triangle = 5.4 cm

h = Perpendicular height of triangle = 3.2 cm

We can substitute the information given in the problem into this formula.

A = ( 5.4 × 3.2 ) / 2

A = 17.28 / 2

A = 8.64 cm^2

Substitute the value of A into the original volume of a prism formula with the other information given in the problem.

V = Ah

V = ( 8.64 ) ( 6 )

V = 51.84 cm^3

7 0
4 years ago
The answer to this question
Ilia_Sergeevich [38]

Answer:

The fourth one J is the answer

Step-by-step explanation:

we only need to find one point(0,-2)

the following selections only the fourth one

when x=0 ,y=-2

3 0
3 years ago
Which represents the solution set of inequality 5x-9&lt;21?
sweet-ann [11.9K]

Answer:    x < 6

<u>Step-by-step explanation:</u>

5x - 9 < 21

<u>     + 9</u>   <u>+9  </u>

5x       < 30

<u>÷5     </u>    <u>÷5   </u>

 x       <  6

4 0
4 years ago
Someone pls help i’m desperate
Ulleksa [173]

Answer:

<u>Filling in the blanks:</u>

  • 1. Opposite
  • 2. C
  • 3. Opposite

<u>Factoring the polynomial:</u>

  • x² + 11x - 26 =
  • x² + 13x - 2x - 26 =
  • x(x + 13) - 2(x + 13) =
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3 0
3 years ago
A triangle has sides with lengths of 26 meters, 39 meters, and 43 meters. Is it a right triangle?
Ivanshal [37]

Answer: No

Step-by-step explanation:

This triangle is not a right triangle because:

A right triangle must have one side that is exactly 90°.

A triangle with sides 26, 39, and 43 do not have any sides that total 90.

The answer to your question is no.

Best of Luck!

4 0
3 years ago
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