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3 years ago

The difference between an open circle and a closed circle on a graph of an inequality.

Mathematics

1 answer:

Ilia_Sergeevich [38]3 years ago

3 0

A closed circle means that value is included, and an open circle means that value is excluded.

Example:

x > 2 ---- Graphed with an open circle, everything greater than but not including 2

x ≤ 3 ------ Graphed with a closed circle, everything less than and including 3

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Y=5x-1 and -15x-3y=3 how many solutions does this have

Artemon [7]

No solutions. The equation would be
-15x-3(5x-1)=3
-15x-15x-3=3
No Solution

Hope this helped?

4 0

3 years ago

Let f(x) = x^3 + 2x^2 + 3x + 1 and g(x)= 4x-5 Find f(x) x g(x)

Brums [2.3K]

$▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪$

Given :

$f(x) = {x}^{3} + 2 {x}^{2} + 3x + 1$

$g(x) = 4x - 5$

let's solve for f(x) × g(x) :

$( {x}^{3} + 2x {}^{2} + 3x + 1)(4x - 5)$

$4x {}^{4} - 5 {x}^{3} + 8 {x}^{3 } - 10 {x}^{2} + 12 {x}^{2} - 15x + 4x - 5$

$4 {x}^{4} + 3 {x}^{3} + 2 {x}^{2} - 11x - 5$

therefore, correct choice is : D

8 0

2 years ago

Pls explain below :)

matrenka [14]

Answer:

$9 units^{2}$ aka 9 units

Step-by-step explanation:

Its pretty simple so what u do is count the sqaures then multiply them and ill do it for you

H=3

B=6

and the formula for a triangle is A= $\frac{b*h}{2}$ so its 3x6/2=9

The answer is 9

5 0

2 years ago

Read 2 more answers

~f r e e ~ p o i n t s ~ i f ~ y o u ~ a n s w e r ~ t h i s ~ I m P o S s I b L e ~ q u e s t i o n~

Nutka1998 [239]

Answer:

21..........

Step-by-step explanation:

6 0

2 years ago

Slope -8 and y intercept 7

max2010maxim [7]

Answer:

The equation of Line is y = - 8x + 7

Step-by-step explanation:

Given as :

The slop of line is - 8

And The y intercept is 7

As the equation of line is y = mx + c

For y intercept , x = 0

So, With y intercept and slop ,

7 = (-8)× (0)+ c

Or, c = 7

So the equation of line is

y = mx + c

I.e y = ( - 8 ) x + 7

Hence The equation of Line is y = - 8x + 7 Answer

8 0

3 years ago