What is the solution to the following system?
3x + 3y + 3z = -12
5x + 2y + 2z = -17
2x-4y - z = -20
A rectangle has a perimeter of 42 after tripling its length, the new perimeter is 94. Find the original length and width
Answer:
Step-by-step explanation:
List all of the solutions.
42=
94=
Plz answer the question ASAP
Answer:
4 units
Step-by-step explanation:
Answer:
4.0 units
Step-by-step explanation:
Según datos de una empresa aseguradora de vehículos, dos de cada cinco accidentes son provocados por conductores en estado de ebriedad, ¿cuál es la probabilidad de que tres de nueve accidentes seleccionados al azar hayan sido ocasionados por conductores ebrios?
Answer:
La probabilidad es [tex]0.2508[/tex]
Step-by-step explanation:
Sabemos que según datos de una empresa aseguradora de vehículos, dos de cada cinco accidentes son provocados por conductores en estado de ebriedad. Entonces, si definimos el evento
[tex]A[/tex] : ''Accidente provocado por un conductor en estado de ebriedad''
La probabilidad de este evento es
[tex]P(A)=\frac{2}{5}[/tex] (dato del problema)
Por lo tanto, en cada accidente que ocurre, la probabilidad de que ocurra el evento [tex]A[/tex] es [tex]\frac{2}{5}[/tex] .
Ahora bien, si suponemos cada uno de estos accidentes independientes y con probabilidad de ocurrencia ''p'' constante a lo largo del tiempo, estamos ante la presencia de un proceso Bernoulli.
Dado un proceso de Bernoulli, definimos la variable aleatoria discreta ''[tex]X[/tex]'' como el número de éxitos del proceso Bernoulli para un número fijo de ensayos.
En este caso vamos a definir
[tex]X[/tex] : ''Número de accidentes provocados por conductores en estado de ebriedad de un total de n accidentes''
Se dice que [tex]X[/tex] tiene distribución binomial de parámetros ''n'' y ''p''.
Lo denotamos [tex]X[/tex] ~ Bi (n,p)
En nuestro ejercicio el valor de ''n'' es 9 (son los ensayos que fijamos) y el valor de ''p'' es [tex]\frac{2}{5}[/tex] (definimos como ''éxito'' que el accidente sea provocado por un conductor en estado de ebriedad).
Ahora bien para calcular probabilidad vamos a utilizar la siguiente fórmula :
[tex]P(X=x)=(nCx)p^{x}(1-p)^{(n-x)}[/tex] (I)
'' [tex]P(X=x)[/tex] '' es la probabilidad de que la variable aleatoria [tex]X[/tex] asuma el valor x. En particular, buscamos [tex]P(X=3)[/tex] que es la probabilidad de que de nueve accidentes (fijados), tres sean provocados por conductores en estado de ebriedad.
'' [tex](nCx)[/tex] '' es el número combinatorio definido como
[tex]nCx=\frac{n!}{x!(n-x)!}[/tex]
Reemplazando los datos en la ecuación (I) :
[tex]P(X=3)=(9C3)(\frac{2}{5})^{3}(\frac{3}{5})^{6}=0.2508[/tex]
La probabilidad pedida es [tex]0.2508[/tex]
Please help, solve for x
2/x = 30/-5
Answer:
-1/3
Step-by-step explanation:
You multiply the -5 by 2
Then divide the result by 30.
Please help me answer this question please
Answer:
BCA
Step-by-step explanation:
Answer:
it is the 2x angle
Step-by-step explanation:
A company decides to give ID numbers to its employees that consist of one letter followed by three digits. How many different such ID numbers are there?
Answer:
25,974 possible ID combinations
Step-by-step explanation:
Since the ID card will consist of one letter and three digits to find the total number of possibilities we simply multiply the number of letter options that exist by the total amount of numbers each letter can be followed by. There are a total of 26 letters in the English Alphabet. Since each letter is followed by only 3 digits, then the largest number that can exist after the letter is 999. Therefore, we simply multiply 26 by 999 to find the total number of possible outcomes.
26 * 999 = 25,974 possible ID combinations
The number of different such ID numbers are there should be 25,974 possible ID combinations
Calculation of the no of different ID numbers:Since the ID card comprise one letter. Also, there are total of 26 letters in the English Alphabet.
So here we can do that we simply multiply 26 by 999 that comes 25,974.
Therefore, The number of different such ID numbers are there should be 25,974 possible ID combinations
Learn more about number here: https://brainly.com/question/17802211
Need help with question 16 and I need work please and thanks be correct
What is 80•2? I need help!!
Answer: 160
Step-by-step explanation:
80 x 2 = 160
A triangle has the vertices of A(2,3), B(-2,2) and C(-3,5). What are the
coordinates of the vertices of the image after the translation (x,y) — (x + 4, y -
3)?
help me
Answer:
A the answer is super hard
how much is one lollipop? 25 lollipops for $46.00?
Answer: $1.84
Step-by-step explanation: 46 / 25 = 1.84
Answer:
$1.84
Step-by-step explanation:
25 divide by $46.00 = $1.84
The pre-image △ABC is translated 5 units to the right and two units up to get the image △DEF.
Which statement is TRUE?
AB¯¯¯¯¯≅DE¯¯¯¯¯
AB¯¯¯¯¯∥DE¯¯¯¯¯
∠BAC≅∠EDF
All of the statements are true.
Answer:
∠BAC≅∠EDF
Step-by-step explanation:
Write a word problem for x+2=15
_
5
Answer:
x = 13 is the answer for your question
13 + 2 = 15
The level of water in a bathtub rises 5 inches in 2 hours. Which of the following represents the rate of change of the water level with respect to the time?
A. 5 inches/ 2 hours
B. 2 inches/5 Hours
C. 5 hours/ 2 inches
D. 2 hours/ 5 inches
Edna purchased a table for
$403.20. This amount already included the sales tax. If the price of the table before sales tax was $360.00, what percent was the sales tax?
Answer:
1.12
Step-by-step explanation:
I divided 403.20 and 360.00.
Hope this helps
A city is putting in a sand pit at the park. The length is an even, one-digit whole number, and
the width is 6.7 feet. Which explains the least and greatest possible areas for the sand pit?
Answer:
Step-by-step explanation:
Answer:
Listen the number is an EVEN one-digit, so that means all odd numbers that are one-digit numbers are out so that means number A is wrong so its between B, C, and D. If you read the answer throughully through B, C, and D you will find one of the 2 x 6.7 is wrong. To find the correct answer to 2 x 6 and if the sum of 2 x 6 is equal to your 2 x 6 you have the correct answer! Btw I forgot the exact answer but I know it was either B or C.
Step-by-step explanation:
which of the folowing numbers would be found to the right of the number -35 on a number line ?
What number is five steps to the right of -100?
Answer:
The answer is negative -95
I NEED HELPPP ASAPPPPP I WILL GIVE BRAINLIESTTTT!!!!!!
a function is a binary relation between two sets that associates every element of the first set to exactly one element of the second set.
what is 1000 x 6000
Answer:
6,000,000
Step-by-step explanation:
Solve for k:
K/2 plus 1/2=3
Answer:v
vvre
Step-by-step explanation:
Answer:
K should be 5
Step-by-step explanation:
1/2 is .5 which leaves k/2 you need 2.5 to make three and 2.5*2 is 5 5/2 is 2.5 plus 5 is 3 therfore k is 5
If a video is getting 450 views every 9 days, how long will it take to reach 1,000 views?
Answer:
90%
Step-by-step explanation:
70
Tommy currently has a cell phone plane for text messaging with Phone-Phriends which charges $0.20 per text message. Tommy is considering switching to
an unlimited plan which costs $49 per month. How many messages each month must Tommy send for it to be cost effective to switch to the unlimited
plan?
Answer:
49÷0.20= 245
He has to be able to have a number of text each month to be able to switch so 0.20 for each text he sends each month so you have to divide from 49.
please complete 7 and 8
giving brainliest
7.668 divided by 0.009
Answer:
852
Step-by-step explanation:
Answer:
852
Step-by-step explanation:
7.668 divided by 0.009 start off by making your division equation the way you want to write it and then go one by one on the numbers and start dividing it then you will get the answer: 852
HELP ME PLEASE!! This is due today!! Use kcf and show ur work plzz!
Determine both intercepts be sure of your answer
It takes 4 people 36 minutes to solve 18 problems. How many minutes will it take 6 people to solve 42 problems.
Answer:
54 I think, but I'm not sure sorry
Step-by-step explanation:
4 ÷ 2 = 2
36 min ÷ 2 = 18 min
2 x 3 = 6 (6 ppl)
18 min x 3 = 54 min
Help please please please
Answer:
They often use up other resources native organsinsms need.
Step-by-step explanation:
By doing so they can end up killing native organsinsms.
ax+b=c
Solve for x
Please include work
Answer:
x=c/a - b/a
Step-by-step explanation:
subtract b
divide by a