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lorasvet [3.4K]
2 years ago
13

Help i will give thanks to the first to answer

Mathematics
2 answers:
alexdok [17]2 years ago
4 0
7(3)^2 - 3(3) - 6 = 7*3*3 - 3*3 - 6 = 63 - 9 - 6 = 48
andrew11 [14]2 years ago
3 0

Answer:

i believe it's 48

Step-by-step explanation:

7x^2 - 3x - 6

7(3)^2 - 3(3) - 6

63 - 9 - 6

54 - 6

48

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Which ordered pair is a solution to the system of equations y=x+3 and y=x^2-x
Elenna [48]

For this case we have the following system of equations:

y = x + 3\\y = x ^ 2-x

Equating the equations we have:

x ^ 2-x = x + 3\\x ^ 2-x-x-3 = 0\\x ^ 2-2x-3 = 0

To find the solutions we factor the equation. To do this, we look for two numbers that, when multiplied, result in -3 and when added, result in -2.

These numbers are: -3 and +1

-3 + 1 = -2\\-3 * (+ 1) = - 3

Thus, the factored equation is:

(x-3) (x + 1) = 0

Then, the solutions for the variable "x" are:

x_ {1} = 3\\x_ {2} = - 1

We find the solutions for the variable "y":

y_ {1} = x_ {1} + 3 = 3 + 3 = 6\\y_ {2} = x_ {2} + 3 = -1 + 3 = 2

Thus, the solutions are:

(x_ {1}, y_ {1}): (3,6)\\(x_ {2}, y_ {2}): (-1,2)

ANswer:

(x_ {1}, y_ {1}): (3,6)\\(x_ {2}, y_ {2}): (-1,2)

3 0
4 years ago
Which answer choice is correct
maria [59]

Answer: c

Step-by-step explanation:

8 0
3 years ago
25. Point A on a coordinate grid is at (3, 4). If the point is reflected across the line
Nutka1998 [239]

Using translation concepts, the images of the points are given as follows:

25. (4,3).

26. (3,1).

<h3>What is a translation?</h3>

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s definition or in it’s domain. Examples are shift left/right or bottom/up, vertical or horizontal stretching or compression, and reflections over the x-axis or the y-axis.

The rule for a reflection across y = x is given by:

(x,y) -> (y,x).

Hence, in item 25:

The image of (3,4) is (4,3).

The rule for a reflection across y = -x is given by:

(x,y) -> (y,-x).

Hence, in item 26:

The image of (-1,3) is (3,1).

More can be learned about translation concepts at brainly.com/question/28373831

#SPJ1

7 0
2 years ago
Write a problem that the expression 3•-7-10+25=-6
34kurt
Simplifying that would be 3 * (-7) -10+25 = -6. Combining like terms will get us to -21 +15 = -6, going further will be -6 = -6. Remember Order of Operations. Since -6 = -6, the equation is true. 
6 0
3 years ago
If polygon COLD is congruent to polygon WARM and the area of polygon WARM is 28 square feet, what is the area of polygon COLD
Law Incorporation [45]

Answer:

28 sqr feet.

Step-by-step explanation:

Congruent means equal to. So Cold = Warm for some given property (Area in this case).

28 ft^2 is the answer

8 0
3 years ago
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