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lawyer [7]
3 years ago
15

Write a possible equation for a polynomial whose graph has the following horizonal intercepts. Show your work.

Mathematics
1 answer:
posledela3 years ago
6 0

Answer:

A) x - 4

B) x² - 4x

C) x³ - 2x² - 8x

D) 2x³ + 3x² - 32x + 15

Step-by-step explanation:

A)

x-intercepts: x = 4

Factors:

(x - 4)

B)

x-intercepts: x = 4, 0

Factor:

(x - 0)(x - 4)

x² - 4x

C)

x-intercepts: x = 4, 0, -2

Factor:

(x - 0)(x - 4)(x + 2)

(x² - 4x)(x + 2)

x³ - 4x² + 2x² - 8x

x³ - 2x² - 8x

D)

x-intercepts: x = 3, ½, -5

Factor:

(x - 3)(2x - 1)(x + 5)

(2x² - 6x - x + 3)(x + 5)

(2x² - 7x + 3)(x + 5)

2x³ - 7x² + 3x + 10x² - 35x + 15

2x³ + 3x² - 32x + 15

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What number solves the equation x + 7.4 =11.2
Sunny_sXe [5.5K]

The value of x is 3.8

<em><u>Solution:</u></em>

<em><u>Given equation is:</u></em>

x + 7.4 = 11.2

We have to solve the equation for "x"

Move the terms so that you end up with only terms involving x on one side of the sign and all the numbers on the other

Therefore, we get

x + 7.4 = 11.2

When we move 7.4 from left side to right side of equation it becomes -7.4

x = 11.2 - 7.4

Subtract 7.4 from 11.2

x = 3.8

Thus value of x is 3.8

3 0
3 years ago
Simplify the following expression using distributive property <br> -2(x-8)
MariettaO [177]
The answer to -2(x-8) is 16-2x
8 0
2 years ago
Help organize the correct order of steps<br> THANK YOU
evablogger [386]
E, D, B, A, C, F

I’m pretty sure that’s the order, sorry if it’s wrong
6 0
3 years ago
Use the Pythagorean theorem to find the missing area
fgiga [73]

Answer:

28 cm^2

Step-by-step explanation:

a^+21^2=36^2

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5 0
3 years ago
I WILL GIVE BRAINLY! The surface of a table to be built will be in the shape shown below. The distance from the center of the sh
ki77a [65]

Answer:

  • draw lines center to vertex
  • 43.5 square inches
  • 261 square inches

Step-by-step explanation:

<u>Part A</u>:

The area can be decomposed into triangles by drawing a line from the center to each vertex of the hexagon.

__

<u>Part B</u>:

The area of each triangle is given by the triangle area formula:

  A = (1/2)bh

  A = (1/2)(10 in)(8.7 in) = 43.5 in²

__

<u>Part C</u>:

The area of the table top is 6 times the area of one triangle:

  surface area = 6(43.5 in²) = 261 in²

3 0
3 years ago
Read 2 more answers
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