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3 years ago

What is -40/-63 simplified?

Mathematics

1 answer:

S_A_V [24]3 years ago

6 0

The answer would be 40/63 as simplified.
Hope this helps! Can i have brainiest?

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What is the product?<br> 3x[-6 -14 -11 -9]

suter [353]

Answer:120

Step-by-step explanation:

calculate the sum of the negetive numbers 3x-40

=120

8 0

3 years ago

Let represent the number of tires with low air pressure on a randomly chosen car. The probability distribution of is as follows.

Sindrei [870]

Answer:

a) $P(X=3) = 0.1$

b) $P(X\geq 3) =1-P(X$

And replacing we got:

$P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4$

c) $P(X=4) = 0.3$

d) $P(X=0) = 0.2$

e) $E(X) =0*0.2 +1*0.3+2*0.1 +3*0.1 +4*0.3= 2$

f) $E(X^2)= \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) =0^2*0.2 +1^2*0.3+2^2*0.1 +3^2*0.1 +4^2*0.3= 6.4$

And the variance would be:

$Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4$

And the deviation:

$\sigma =\sqrt{2.4} = 1.549$

Step-by-step explanation:

We have the following distribution

x 0 1 2 3 4

P(x) 0.2 0.3 0.1 0.1 0.3

Part a

For this case:

$P(X=3) = 0.1$

Part b

We want this probability:

$P(X\geq 3) =1-P(X$

And replacing we got:

$P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4$

Part c

For this case we want this probability:

$P(X=4) = 0.3$

Part d

$P(X=0) = 0.2$

Part e

We can find the mean with this formula:

$E(X)= \sum_{i=1}^n X_i P(X_i)$

And replacing we got:

$E(X) =0*0.2 +1*0.3+2*0.1 +3*0.1 +4*0.3= 2$

Part f

We can find the second moment with this formula

$E(X^2)= \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) =0^2*0.2 +1^2*0.3+2^2*0.1 +3^2*0.1 +4^2*0.3= 6.4$

And the variance would be:

$Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4$

And the deviation:

$\sigma =\sqrt{2.4} = 1.549$

4 0

3 years ago

timofeeve [1]

Answer:

ㄲ

Respuesta: se necesitan 15 casos para las 4 lámincis.

El primer 3 indica los 3 clavos para el lado izquierdo de la primera lámina. los números del L...4

indican el número de laminas, y el segundo 3 indica el número de claves para el lado derecho de

cada lamina.

lámina y se calcula

A mumero de casos se obtiene relacionando el número de liminas con la cantidad de clavos per

3 + nuncro deliminas) X 3

Cuilice si patria numérico anterior para encontrar la cantidad de clavos necesarios según el número

b. 6 laminas

10 Sáminas

-se de forma física bien identificados.

5: Leer el contenido de la presente guía, realizar las

FECHA: 06 al 17 septiembre 2021

Tercel CUMP

E de liminas

Liminas

8 0

3 years ago

Sort each equation according to whether it has one solution, infinitely many solutions, or no solution.

Aliun [14]

《ANSWER》

《LINEAR EQUATIONS》

Solving all we get as

↪1) 5 (x -2) = 5x - 7

since after solving X is cancelled , NO SOLUTION

↪2) -3 (x - 4) = -3x + 12

SINCE after solving X is any value , infinitely many solutions

↪3) 4 (x + 1) = 3x + 4

solving we get as , 4x+ 4 = 3x + 4 =》 X =0

only one solution

↪4) -2 (x-3) = 2x - 6

Only one solution

↪5) 6 (x + 5) = 6x + 11

NO SOLUTION

All the equations are solved by the distributive law of algebra

5 0

3 years ago

Read 2 more answers

Lines with the same slope are

Novay_Z [31]

Step-by-step explanation:

lines with the same slope are parallel.

I hope it's helpful!!

5 0

3 years ago

Read 2 more answers