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3 years ago

Which models best illustrates the inequality and its graph?

Mathematics

1 answer:

Nata [24]3 years ago

6 0

Answer:

Step-by-step explanation:

Open circle means the number is not included.

Hope this helps <3

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A degree may seem like a very small unit but an error of one degree in measuring an angle may be very significant. For example,

djyliett [7]

The answer & explanation for this question is given in the attachment below.

5 0

3 years ago

Decrease 220kg by 12.5%. NEED HELPPP!

3241004551 [841]

Hmm try 192.5 I think that’s right

6 0

4 years ago

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How do you write 2 fractions which equal 1/2

Irina18 [472]

Answer:

$\frac{2}{4}$ , $\frac{4}{8}$ etc.

Step-by-step explanation:

Multiply the top and bottom of $\frac{1}{2}$ by the same number to get an equivalent fraction.

8 0

3 years ago

Solve this problem out

Virty [35]

Option C

When $(2x - 3)^2$ is subtracted from $5x^2$ then the result is $x^2 + 12x - 9$

<h3>Solution:</h3>

Given that $(2x - 3)^2$ is subtracted from $5x^2$

We have to find the result

Subtraction is a mathematical operation that tells us the difference between two numbers.

When "a" is subtracted from "b", we write in mathematical expression as "b - a"

So $(2x - 3)^2$ is subtracted from $5x^2$ is written mathematically as:

$\rightarrow 5x^2 - (2x - 3)^2$

Expanding the above expression using algebraic identity:

$(a-b)^2 = a^2 - 2ab + b^2$

$\rightarrow 5x^2 - ((2x)^2 -2(2x)(3) + (3)^2)\\\\\rightarrow 5x^2 - (4x^2 - 12x + 9)$

Multiplying the nnegative sign with terms inside bracket

There are two simple rules to remember:

When you multiply a negative number by a positive number then the product is always negative.

When you multiply two negative numbers or two positive numbers then the product is always positive.

$\rightarrow 5x^2 - (4x^2 - 12x + 9)\\\\\rightarrow 5x^2 - 4x^2 + 12x -9\\\\\rightarrow x^2 + 12x - 9$

Hence the result is: $x^2 + 12x - 9$

3 0

3 years ago

What is the point called where 2 lines intersect or cross? It is the ___________ to the system of equations

Oxana [17]

Answer:

Step-by-step explanation:

The point where the lines intersect is called the point of intersection.These form opposite angles.

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3 years ago

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