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3 years ago

What is the slope-intercept form of a linear equation? explain why this form is called the slope-intercept form?

1 answer:

5 0

The slope-intercept form of a linear equation is y=mx+b. m being the slope (part one of name) and b being the y-intercept (part 2 of name).

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) Write an expression that is equivalent to 3(7 + x).

Mamont248 [21]

same question how many times...?

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3 years ago

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If a circle has a Diameter of 4m and a Radius of 4 units. Then what is Circumference and Area of the circle?

Fiesta28 [93]

Answer & Step-by-step explanation:

$Circumference=d\pi \\Area=r^2\pi$

The diameter of the circle is 8 m and the radius of the circle is 4 units. So, now we have to plug in the numbers so we can find the circumference and the area of the circle.

$Circumference=(8)\pi$

$Circumference=25.12$

So, the circumference of the circle is 25.12 m.

$Area=(4)^2\pi$

$Area=16\pi$

$Area=50.24$

So, the area of the circle is 50.24 units².

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3 years ago

A model of an airplane is 8 inches long. If the actual

andrew11 [14]

Answer:

The answer is

Step-by-step explanation:

just multiply 4.5 by 8 and you get 36

8 0

3 years ago

if it takes Joan one and a half hours to watch a movie, how many films can he watch in ten and a half hours

otez555 [7]

7 hours
steps:

10 1/2 divided by 1 1/2

8 0

3 years ago

the lengths of 2 sides of a triangle are shown. side 1: 3x2 - 4x - 1. side 2: 4x - x2 + 5. the perimeter is 5x3 - 2x2 + 3x - 8

BigorU [14]

Answer:

A. 2x^2+4

B. 5x^3 - 4x^2 + 3x - 12

C. Yes

Step-by-step explanation:

Given:

Side 1=3x^2-4x-1

Side 2=4x-x^2+5

Perimeter=5x^3-2x^2+3x-8

Perimeter=side 1 + Side 2 + Side 3

A. Total lenght of the two sides

Side 1 + Side 2=(3x^2-4x-1) + (4x-x^2+5)

=3x^2 - 4x - 1 + 4x - x^2 + 5

=3x^2 - x^2 - 4x + 4x - 1 + 5

=2x^2+4

B. Length of the third side

Perimeter=side 1 + Side 2 + Side 3

Recall,

Side 1 + side 2=2x^2+4

Perimeter= (side 1 + Side 2) + Side 3

5x^3-2x^2+3x-8 = 2x^2+4 + side 3

5x^3-2x^2+3x-8 - (2x^2+4) = side

5x^3 - 2x^2 + 3x - 8 - 2x^2 - 4 = Side 3

5x^3 - 2x^2 - 2x^2 + 3x - 8 - 4 = Side 3

=5x^3-4x^2+3x-12

Side 3= 5x^3 - 4x^2 + 3x - 12

C. Yes, addition and subtraction of polynomial of the same degree will give result of the same degree or lower degree

6 0

3 years ago