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Nimfa-mama [501]
3 years ago
11

What is the area of the rectangular pool below whose dimension are 2 x +1 and units x-1 units​

Mathematics
2 answers:
monitta3 years ago
8 0

Answer:

(2x+1)(x-1) = 2x^2 - x - 1

Step-by-step explanation:

Jobisdone [24]3 years ago
8 0

Answer:

2x^2 - x - 1

Step-by-step explanation:

Lets rewrite it to the area formula

(2x+1)(x-1)

Simplify-(distributive property of multiplication)

(2x*x) + (2x*-1) + (1*x) + (1*-1) =

Simplify

2x^2 + (-2x) + x + (-1)

Simplify

2x^2 - x - 1

The answer is 2x^2 - x - 1

If my answer is wrong, pls correct me

If you like my answer and my explanation, mark me as brainliest!

-Chetan K

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26 30 45 43 26 14 28 33 56 29 what is the medain of this data set
sergey [27]

Answer:

26isthemedian

Step-by-step explanation:

6 0
2 years ago
When 3x^2-12x-7 is written in the form of a (x-h)^2+k, what is the value of a,h, and k?
slavikrds [6]
A=2,h=5,k=0 and the vertex,which is (h,k) is vertex (-5,0)
3 0
2 years ago
Una recta con pendiente -2 ´pasa por el punto P(5, -1). La abscisa del punto Q que está en esa recta es 1. Encuentre la ordenada
oksian1 [2.3K]

Answer:

La ordenada de Q es 7.

Step-by-step explanation:

La ecuación de una recta es:

y = a*x + b

donde a es la pendiente y b es la ordenada al origen.

Para este problema, sabemos que la pendiente es -2

Entonces:

a = -2

y = -2*x + b

También sabemos que esta recta pasa por el punto (5, -1)

Esto significa que cuando evaluamos la ecuación en x = 5, y toma el valor y = -1

Si reemplazamos esos valores en la ecuación, obtenemos:

-1 = -2*5 + b

-1 = -10 + b

-1 + 10 = b

9 = b

Entonces la ecuación de la recta es:

y = -2*x + 9

Sabemos que el punto Q está en la línea, y la abscisa de este punto es 1.

Entonces este punto es Q (1, k)

donde k es la ordenada de este punto.

Porque nuestra línea también pasa por este punto, podemos concluir que cuando x = 1, y = k

Reemplazando eso en la ecuación tenemos:

k = -2*1 + 9 = -2 + 9 = 7

k = 7

La ordenada de Q es 7.

7 0
3 years ago
What is the answer for <br> three fourths x equals nine
Dmitry [639]

Answer:

x=12

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

3 0
3 years ago
I need help with this ​
zaharov [31]
Yes it’s a rectangle because the diagonals bisect each other, and they are equal in length.
7 0
2 years ago
Read 2 more answers
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