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Zina [86]
4 years ago
5

The missing number in the series 1,4,27,__,3125 is:

Mathematics
1 answer:
sveta [45]4 years ago
5 0

Answer:

D )  256

Step-by-step explanation:

The given sequence is  1,4,27, ---, 3125

This is sequence of given problem

1^{2},2^{2} ,3^{3} ,4^{4} ,5^{5}

so here missing is '4' term is

The fourth term is 256.

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What is the factored form of the expression: x2 - 5x -50
Debora [2.8K]
Consider the form x^2+bx+c. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is -50 and whose sum is -5.

-10,5

Write the factored form using these integers

(x-10) (x+5)
3 0
3 years ago
un hotel tiene habitaciones dobles y sencillas. dispone en total de 50 habitaciones y 87 camas ¿cuántas habitaciones tiene cada
Alex777 [14]

Answer:

En el hotel hay 13 habitaciones sencillas y 37 habitaciones dobles.

Step-by-step explanation:

Un sistema de ecuaciones lineales es un conjunto de dos o más ecuaciones de primer grado, en el cual se relacionan dos o más incógnitas.

Resolver un sistema de ecuaciones consiste en encontrar el valor de cada incógnita para que se cumplan todas las ecuaciones del sistema.

En este caso, las variables que se definen son:

  • x: habitaciones simples
  • y: habitaciones dobles

Entonces, el hotel dispone en total de 50 habitaciones, por lo que se plantea la ecuación:

x + y= 50

El hotel dispone de 87 camas. La cantidad de camas por habitación puede ser expresada mediante:

x + 2*y= 87

Entonces el sistema de ecuaciones a resolver es:

\left \{ {{x+y=50} \atop {x+2*y=87}} \right.

El método de sustitución consiste en despejar o aislar una de las incógnitas, por ejemplo x , y sustituir su expresión en la otra ecuación. De este modo, obtienes una ecuación de primer grado con la otra incógnita,  y . Una vez resuelta, calculas el valor de  x  sustituyendo el valor de  y ya conocido.

En este caso, despejando x de la primer ecuación:

x= 50 -y

y reemplazando en la segunda ecuación obtienes:

50 -y + 2*y=87

-y + 2*y=87 -50

y= 37

Reemplazando en la expresión x= 50 -y obtienes:

x= 50 -37= 50-37

x= 13

Recordando que x representa la cantidad de habitaciones sencillas e y la cantidad de habitaciones dobles, <u><em>en el hotel hay 13 habitaciones sencillas y 37 habitaciones dobles.</em></u>

3 0
3 years ago
A forensic detective is called to the scene of a murder at 2 am. When she checks the temperature of the body, she sees that it i
Readme [11.4K]
Newton's Law of cooling is
T(t)=T_{a}+(T_{0}-T_{a})e^{-0.1947t}
where
T(t) = temperature of the body after t hours, 80 °F
T_{a} =  ambient temperature, 65 °F
T_{0} = normal body temperature, assumed to be 98.6 °F

The elapsed time since death is obtained from
65+(98.6-65)e^{-0.1947t|} = 80
33.6e^{-0.1957t}=15
-0.1947t=ln \frac{15}{33.6}
t= \frac{ln(15/33.6)}{-0.1947} =4.142

4.142 hours before 2 am is 9:52 pm (the previous day) approximately.

Answer:  9:52 pm the previous day.

5 0
3 years ago
Does anyone know how to do this? If so can you please help me?!
Ierofanga [76]
4*4*4*4 so basically putting 4 in 5 groups
7 0
3 years ago
Simplify completely.<br> 3 189x5y7<br> √/7x²y²<br> 3
Igoryamba
3xy multiplied by the cube root of y^2
5 0
2 years ago
Read 2 more answers
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