What is the difference between a representation of a concept and an example? PLEASE HELP!!

Answers

Answer 1

Answer: when you represent a concept its like the same thing just you're thinking about it in a different way. and example is an elaboration of that.... like an add on. so an example of a representation would be the cup thing... it could be half empty or half full you could be an optimist or a pessimist depends on how you look at it.... see how I did that xb hope I helped

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What are the roots of the equation x^2+6x-9=0

Answers

Answer:

The roots of the quadratic equation are

$x=-3+3√(2)$

$x=-3-3√(2)$

Step-by-step explanation:

we have

$x^(2) +6x-9=0$

we know that

The formula to solve a quadratic equation of the form $ax^(2) +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^(2)-4ac}} {2a}$

in this problem we have

$x^(2) +6x-9=0$

$a=1\nb=6\nc=-9$

substitute in the formula

$x=\frac{-6(+/-)\sqrt{6^(2)-4(1)(-9)}} {2(1)}$

$x=\frac{-6(+/-)√(72)} {2}$

$x=\frac{-6(+/-)6√(2)} {2}$

$x=-3(+/-)3√(2)$

$x=-3(+)3√(2)$

$x=-3(-)3√(2)$

Given equation is :

$x^(2)+6x-9=0$

We will solve this quadratic equation, using the formula:

$x1,2=\frac{-b+\sqrt{b^(2)-4ac}}{2a}$ and

$x1,2=\frac{-b-\sqrt{b^(2)-4ac}}{2a}$

Now, putting a=1 , b=6 and c =-9 we get

$x=\frac{-6+\sqrt{6^(2)-4*1(-9)}}{2*1}$ and

$x=\frac{-6-\sqrt{6^(2)-4*1(-9)}}{2*1}$

Final solutions are: $x=3(√(2)-1)$ and

$x=-3(√(2)+1)$

Laurie buys four bags of candy with 10 pieces of candy in each bag. Her father then gives her 5 more pieces of candy. Laurie wants to give as much of her candy as she can to each of her six friends, and she wants to make sure they each get an equal number of pieces. How many pieces will be left over, if any, after Laurie gives her friends the candy?pieces left over

Answers

Ok! At first Laurie has 40 candies since 4 times 10 is 40. then after her dad gives here more, she has 45.
45 is not divisible by six, so we will get a remainder. the closest number to 45 when multiplied by six is 42, and 42/6=7.
Each friends will get 7 pieces, and there will be a remaining of 3 pieces since 45-42=3.
Hope it helped!

There will be no candy left because Laurie will give each friend 10 pieces of candy each.

Brock's dog is a collie. To find the mass of his dog, should Brock use grams or kilograms

Answers

A dog would most likely be weighed with grams.

Answer:

to be honest i do not know this answer but i assume that it is big like by a lot

Step-by-step explanation:

Use the distributive property to write 23y-(7x-2y)+x without parentheses.

Answers

Easy,

23y-(7x-2y)+x

There is an imaginary 1 in front of the parentheses, making it,

23y-1(7x-2y)+x

Now, distribute the 1.

-1*7x= -7x
and
-1*-2y= 2y

Leaving your problem looking like...

23y-7x+2y+x

Combine your apples and oranges.....

25y-6x

Thus, your answer.

What is greater .5 or .5%

Answers

When you see math printed or written, " % " means " /100 ".

So " .5% " means " .5/100 ".

If you simplify that, or write it as a decimal, you get 1/200 or 0.005 .

Either way, " .5 " is greater.

.5(0) is Fifty percent but .5% is less than 1%

The graph of the function f(x) = (x + 2)(x − 4) is shown.On a coordinate plane, a parabola opens up. It goes through (negative 2, 0), has a vertex at (1, negative 9), and goes through (4, 0).
Which describes all of the values for which the graph is negative and increasing?

all real values of x where x < −2
all real values of x where −2 < x < 4
all real values of x where 1 < x < 4
all real values of x where x < 0

Answers

All realvalues of x where 1 < x < 4.

What is the Graph function?

The graph of a function f is the set of all points inside the aircraft of the shape (x, f(x)). We can also define the graph of f to be the graph of the equation y = f(x). So, the graph of a character is a unique case of the graph of an equation.

How does Graph function?

For graphing functions, we need to plot its asymptotes, its x and y-intercepts, holes, and some factors on it by means of building a desk of values. Then simply join the factor by not touching the asymptotes and maintaining a observation of the area and range of the characteristic.

Learn more about Graphfunction here brainly.com/question/24992590

#SPJ2

Answer:

Step-by-step explanation:

all real values of x where 1 < x < 4

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Ten video games cost $145

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What is 3.75 in fraction form

The question asks to simplify the following (imagine as fraction form / sign stands for fraction form)a+6/c/2a+6/2c