6X + 8Y - 4Z = 5
1X + 2Y + 5Z = 9
9X - 3Y + 3Z = 6
Por favor cómo se resuelve esta matriz por método Gauss-Jordan
Responder:
la solución (x, y, z) es (4.48, 4.86, -1.04)
Explicación paso a paso:
Dadas las ecuaciones simultáneas;
6X + 8Y - 4Z = 5 .... 1
1X + 2Y + 5Z = 9 ... 2
9X - 3Y + 3Z = 6 .... 3
Primero necesitamos reducir el sistema de ecuaciones
Ecuación 1 * 1
Ecuación 2 * 4
__________
6X + 8Y - 4Z = 5
4X + 8Y + 20Z = 36
Restar
6x-4x - 4z-20z = 5-36
2x-24z = 31 ... 4
también
ecuación 2 * 3
ecuación 3 * 2
_______________
1X + 2Y + 5Z = 9 * 3
9X - 3Y + 3Z = 6 * 2
_______________
3x + 6y + 15z = 27
18x - 6 años + 6z = 12
Agregar
3x + 18x + 15z + 6z = 27 + 12
21x + 21z = 39 ...... 5
Resolviendo 4 y 5
2x-24z = 31 ... 4 * 21
21x + 21z = 39 ...... 5 * 2
____________
42x - 504z = 651
42x + 42z = 78
Sustraer
-504x - 42z = 651-78
-546z = 573
z = -573/546
z = -1.05
Sustituye z = -1.05 en 4
De 4;
2x-21z = 31
2x - 21 (-1,05) = 31
2x + 22,04 = 31
2x = 31-22.04
2x = 8,96
x = 8,96 / 2
x = 4,48
Obtener y
De 2:
X + 2Y + 5Z = 9
4.48 + 2y + 5 (-1.04) = 9
2 años + 4,48-5,2 = 9
2y = 9 + 0,72
2 años = 9,72
y = 9,72 / 2
y = 4,86
Por tanto, la solución (x, y, z) es (4.48, 4.86, -1.04)
how many millimeters are in 7 liters
7 liter = 7000000 cubic millimeters
Please help me its due today
Answer:
The second one and the third one.
Step-by-step explanation:
The answer is 5*2+5*4
Plz help plz help I need help
Answer:
1. X = 4
2. Y = 3
3. Y = 4 or Y = log>6 (1296)
4. X = 4
5. X = 3
6. X = 2
7. X = 2
8. X = 5
9. X = 3
sorry if I can get the letters right I couldn’t really see it well .
If you answer your the G.O.A.T. Pleaseeeeeeeee somebody answer
Answer:
[tex]8 - 10 = -2[/tex]
[tex]-20 - 10 = -30[/tex]
[tex]-2 - (-19) = 17[/tex]
[tex]-25 -35=-60[/tex]
Step-by-step explanation:
(a)
[tex]8 - 10[/tex]
Rewrite as addition:
[tex]8 - 10 = 8 + (-10)[/tex]
[tex]8 - 10 = -2[/tex]
(b):
[tex]-20 - 10[/tex]
Rewrite as addition:
[tex]-20 - 10 = -20 + (-10)[/tex]
[tex]-20 - 10 = -30[/tex]
(c)
[tex]-2 - (-19)[/tex]
Rewrite as addition:
[tex]-2 - (-19) = -2 +19[/tex]
[tex]-2 - (-19) = 17[/tex]
(d)
[tex]-25 -35[/tex]
Rewrite as addition:
[tex]-25 -35=-25 +(-35)[/tex]
[tex]-25 -35=-60[/tex]
ANSWER ASAP
Which situation can be represented by this equation?
6 + 0.5x =26
A. Anne earns money for walking dogs. She charges $6 per
walk plus $0.50 per dog. What is x, the amount of money
Anne charges to take one doge on 26 walks?
B. Anne pays $6 to enter a carnival and $0.50 for every ride
she goes on at the carnival. What is x, the number of rides
Anne can go on if she has $26 to spend at the carnival?
C. Anne earns $6.50 per hour babysitting. What is x, the
number of hours Anne babysits if she earns $26?
D. Anne is downloading a game and some songs to her phone. The game cost $6, and each song cost $0.50.
What is x, the total amount Anne pays for the game and 26 songs?
Which set of numbers are factors of 8? *
1, 4, 5
1, 2, 5
1, 2, 4
Answer: 1,2,4
Step-by-step explanation: hope it helps thx for the points :)
Answer:
should be 1,2,4!
Step-by-step explanation:
these numbers can be multiplied to get 8
$0.25 per bottle water
$0.40 per bottle water
$0.50 per bottle water
6-pack
12-pack
24-pack
Answer:
24-pack
Step-by-step explanation:
you are paying less per bottle than the other 2 packs.
What is the lateral surface area of the solid?
A rectangle length 34m x width 42m. what is the area of the rectangle
Answer: 1428m
Step-by-step explanation: The formula for a regular rectangle is l x w = A, or Length x Width = Area. So, if you replace L with 34 and W with 42, you will get your answer by multiplying the numbers
a- ¿Quiénes se oponían a Rosas?
Answer:
Los de los claveles, que tenían competencia con ellos
arrange in order from least to greatest. -3/5, 7/-10,-5/6
[tex] \frac{ - 3}{5} \frac{7}{ - 10} \frac{ - 5}{6} [/tex]
plzz help!!!
fast!!
it is due in 10 min..
I'll make brailiest whose ans is correct...
Choose the number that correctly completes the ratio table.
Answer:
its 8:9
Step-by-step explanation:
It would be 8 because you can see that the top row multiplies 16 by two in the exact spot where the missing number is.
PLEASE HELP ME THIS IS TIMED
find the value of x srt :(
Answer:
3
Step-by-step explanation:
Mike cuts a pie into 4 equal pieces. What is the angle measure of each piece
Answer:
90°
hope this helps :)
Answer:
90 degrees because when you cut each of them they will each measure 90 degrees.
What is the volume, in cubic inches, of a cylinder whose diameter is 6
inches and whose height is 24 inches?
wht do i put in the square box ?
Answer:
3.75
Step-by-step explanation:
Volume = length x width x height
= 2.5 x 1 x 1.5
= 3.75 cm^3
WE count number of blocks for all values seperately, like
for height its three blocks and one block is equal to 1/2
so.
1/2 x 3= 1.5
What is the value of the expression below when x equals 4?
13 + 15x
Answer:
73
Step-by-step explanation:
Answer:
73
Step-by-step explanation:
13+15*4
13+60
73
Derek has a bird that weighs 3 pounds. Use the double line diagram below to help you determine approximately how many kilograms this bird weighs.
2 lines. The first line is labeled Pounds and has 6 marks, equally spaced apart, and every other mark labeled 3, 5, 7, respectively. The second line is labeled Kilograms and has 6 marks, equally spaced apart, and every other mark labeled, 1, 2, 3, respectively.
(2 points)
1.5 kilograms
3 kilograms
5.5 kilograms
6 kilograms
Answer:
about 1.5 kilograms
Step-by-step explanation:
3 pounds=1.36078 so that is closer to the answer 1.5 kilograms
Answer:
1.5
Step-by-step explanation:
i took the test
The Johnson family is taking a road trip. They travled 456 miles in 8 hours. James said their rate is 57 miles per hour.
Do you agree with James? Explain
Answer:57
Step-by-step explanation:
I would do 456/8 to figure out how many miles they went every hour, 456/8 is 57 so James is correct.
Write twenty three and four hundredths as a decimal
Answer:
23.04
Step-by-step explanation:
Answer:
23.04
I really hope you have really nice day and if you need any help whatsoever im here to help. Could i have brainleist/crown?
The ratio of boys to girls at a movie is 5:4 . If there are 16 girls , how many boys are at the movie?
Answer:
,it's 15. and here's why: if i pick 4,its makes 12 because 3x4=12 and if you put 3 with 5,you get 15 which is the answer.
Step-by-step explanation:
Lamar is 5 feet 10 inches tall
. How
mary inches tallis Lamar?
Answer:
about 70 inches
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
5(12)+10= 70 inches
if my answer helps please mark as brainliest.
help me with this question thanks
Answer:
700
Step-by-step explanation:
175 divided by 3 is 58.3 and then you multiply 58.3 by 12 and get 700
What is the difference of
7
8
−
1
3
?
A.
7
+
1
8
+
3
=
8
11
B.
7
−
1
8
−
3
=
6
5
C.
7
×
1
8
×
3
=
7
24
D.
(
7
8
×
3
3
)
−
(
1
3
×
8
8
)
=
21
24
−
8
24
=
13
24
Answer:
I think it is a
Step-by-step explanation:
so sorry if it wrong i tried my best
Answer:
Well the answer is 0.54166666666
Step-by-step explanation:
7/8- 1/3= 0.54166666666
One bottle contains 250 ml of juice. Soham wants 2 liters of juice. How many bottles should he buy?
Answer:
8 bottles
Step-by-step explanation:
What is the initial value of the function f(x)=9(2/3)x+4?
Answer:
x=-2/3
Step-by-step explanation:
f(x)=9×2/3x+4
0=9×2/3x+4(substitute f (x) =0)
0=9×2/3x+4
0=3×2x+4
0=6x+4
-6x=4( move the variable to left side and change the sign)
Divide both sides.. x=-2/3
The initial value of the function f(x) = [tex]\frac{-2}{3}[/tex]
We have a function f(x) = [tex]9(\frac{2}{3} )x +4[/tex]
We have to find the initial value of the function f(x).
How will you calculate the initial value of a function f(x) ?We can calculate the initial value of a function f(x) by equating the function f(x) = 0, and find the value of [tex]x[/tex].
In the question given - f(x) = [tex]9(\frac{2}{3} )x +4[/tex]. In order to calculate the initial value of this function - equate f(x) = 0. Therefore -
[tex]9(\frac{2}{3} )x +4 =0\\[/tex]
6x + 4 = 0
x = [tex]\frac{-4}{6}[/tex]
x = [tex]\frac{-2}{3}[/tex]
Hence, the initial value of the function f(x) = [tex]\frac{-2}{3}[/tex]
To solve more questions on finding initial value of a function, visit the link below - https://brainly.com/question/8223651
#SPJ2
use long or synthetic division to find the following quotients
(x^3+2x^2!22x-45)÷(x+5)
Answer:
[tex]\boxed{\textsf{ The quotient is $\sf x^2-3x-7$ and the remainder is (-10).}}[/tex]
Step-by-step explanation:
Here we will be using long division method to find the quotient . Here we need to divide (x³+2x²-22x-45) and (x+5) . So lets divide .
x+5) x³+2x²-22x-45 ( x² -3x -7
x³ + 5x²
- -
______________
- 3x²-22x -45
-3x² -15x
+ +
______________
-7x -45
-7x -35
______________
-10
Quotient = x² -3x -7
Remainder = (-10)
★Hence the quotient is x² -3x -7 and the remainder is (-10) .Which of the following situations describes a positive number?
A Diving underwater 4 meters.
B Going up the elevator 14 floors.
C Losing 3 points.
D) Paying $20 out of your checking account.
Find the equation of a line with the given information:
f(- 6) = 8 and f( - 8) = – 1.
Wrote answer in point slope form
Answer:
[tex]y -8= \frac{9}{2}(x +6)[/tex]
Step-by-step explanation:
Given
[tex]f(-6) = 8[/tex]
[tex]f(-8) = -2[/tex]
Required
Determine the equation in point-slope form
The general function notation is:
[tex]f(x) = y[/tex]
So, in [tex]f(-6) = 8[/tex]
[tex](x_1,y_1) = (-6,8)[/tex]
[tex]f(-8) = -1[/tex]
[tex](x_2,y_2) = (-8,-1)[/tex]
Calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2-x_1}[/tex]
[tex]m = \frac{-1-8}{-8-(-6)}[/tex]
[tex]m = \frac{-1-8}{-8+6}[/tex]
[tex]m = \frac{-9}{-2}[/tex]
[tex]m = \frac{9}{2}[/tex]
The equation is then calculated as:
[tex]y -y_1= m(x-x_1)[/tex]
[tex]y -8= \frac{9}{2}(x - (-6))[/tex]
[tex]y -8= \frac{9}{2}(x +6)[/tex]