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kondor19780726 [428]
3 years ago
7

En un pueblo se hizo una encuesta a 810 personas antes de las elecciones, la cual arrojo los siguientes resultados:5/18 de los e

ncuestados optaron por "La alianza",2/9 por "La alternativa" y el resto en blanco. Indica cuántas personas eligieron cada opción
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
7 0

Answer:

la alianza: 225

la alternativa: 180

blanco: 405

Step-by-step explanation:

El número total de personas en la ciudad es 810

La fracción de personas que eligieron la alianza es \dfrac{5}{18}

La cantidad de personas que eligieron la alianza es \dfrac{5}{18}\times 810=225

La fracción de personas que eligieron la alternativa es \dfrac{2}{9}

La cantidad de personas que eligieron la alternativa es \dfrac{2}{9}\times 810=180

El número de personas que eligieron el espacio en blanco fue 810-(225+180)=405.

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You can buy 2 tickets to school carnival for $9 total.<br> How many tickets can you buy for $27?
kodGreya [7K]

Answer:

6

Step-by-step explanation:

pls brainliest

9/2=4.5

27/4.5=6

3 0
3 years ago
If f(x) = 2x - 9, which of the following are correct? Select all that apply. f(-1) = -11 f(2) = 5 f(3) = -3 f(0) = -9 f(-3) = 15
Yuri [45]

f(-1) = -11 and f(3) = -3 . these functions are true .

What does a math function mean?

  • A relationship between a group of inputs and one output each is referred to as a function.
  •  A function is an association between inputs in which each input is connected to precisely one output.
  • A domain, codomain, or range exists for every function. f(x), where x is the input, is a common way to refer to a function.
  • In mathematics, a function is an expression, rule, or law that establishes the relationship between two variables (the dependent variable).

given function  f(x) = 2x - 9

   f(-1) = -11 ⇒ x = -1 put in function

                       f( -1 ) = 2 * -1 - 9  ⇒ - 11

    f(2) = 5   ⇒ x = 2 put in function

                    f( 2 ) = 2 * 5 - 9 = 1

    f(3) = -3  ⇒  x = 3 put in function

                     f ( 3 ) = 2 * 3 - 9 = -3

       f(-3) = 15   ⇒  x =  -3 put in function

                     f( -3) = 2 * -3 - 9 = - 15

Learn more about function

brainly.com/question/21145944

#SPJ13

3 0
1 year ago
Question attached plz answer
Bezzdna [24]

Answer:

x = - 2.5

Step-by-step explanation:

Given that the sketch represents

y = x² + bx + c

The graph crosses the y- axis at (0 , - 14), thus c = - 14

y = x² + bx - 14

Given the graph crosses the x- axis at (2, 0), then

0 = 2² + 2b - 14

0 = 4 + 2b - 14 = 2b - 10 ( add 10 to both sides )

10 = 2b ( divide both sides by 2 )

b = 5

y = x² + 5x - 14 ← represents the graph

let y = 0 , then

x² + 5x - 14 = 0 ← in standard form

(x + 7)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 7 = 0 ⇒ x = - 7

x - 2 = 0 ⇒ x = 2

The x- intercepts are x = - 7 and x = 2

The vertex lies on the axis of symmetry which is midway between the x- intercepts, thus

the x- coordinate of the turning point is \frac{-7+2}{2} = \frac{-5}{2} = - 2.5

8 0
3 years ago
PLZZZZZZZZ BRAINILEST
vivado [14]

Answer:

Mass

Step-by-step explanation:

"Robin collected data from dropping watermelons of different 'MASS' for the same height"

8 0
3 years ago
_11] If the radius of a circle is 5, what is the circumference?
ArbitrLikvidat [17]

Answer:

Step-by-step explanation:

A circle with a radius of 5 units has a circumference of 31.416 units.

8 0
3 years ago
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