Solve the given system using matrices.
x + 3y + 2z = 4
-4x - 2y + 5z = 3
2x + 2y + z = 7
x=
y=
z=
Enter answers with no spaces.
I RLLYYYY NEED HELP YALL

Answers

Answer 1

Answer:

X = 64/19

y equals -2/19

z =9/19

Step-by-step explanation:

its very hard to type in the explanation but I know the answer is right trust me I do a level maths


Related Questions

Can someone please answer and explain??

Answers

Answer:

no

Step-by-step explanation: 12/3 can be written as 4

This number can be written as a rational number, a natural number, and a whole number.

Therefore, 12/3 is not only a rational number.

Answer pplssssssssssssssss

Answers

Answer: the answer would be 248832

You would need to subtract the exponents if they are like that

So the answer would be

12^5 or 248832

Hope this helped :)

What is
-3/4 + 2 3/4

Answers

Answer:

2

Step-by-step explanation:

ok so let's start

were starting off with -3/4 and were adding 2 3/4 to that and it's equal to 2 3/4 subtract 3/4

-3/4 + 2 3/4 = 2 3/4 - 3/4

2 3/4 - 3/4 = 2

-3/4 + 2 3/4 = 2

it's 2 my dude or girl i don't know

2. In the tournament, the Tigers scored 44,
56, and 47 points in the first three games.
If their four-game tournament average
score was 52 points, how much did they
score in their final game?
B. 55
C. 58
E. None of the above

Answers

Answer:

58

Step-by-step explanation:

If f(x)=5(2−3x), what is the value of f(−4)?
PLZ HELP! FOR CROWN!

Answers

Step-by-step explanation:

f ( -4) = 5( 2 -3×4) = 5(2-12) = 5× (-10) = -50

Where did Emory make a error?

Answers

I don’t see the problem

Answer:

Hope it help you

Stayhomestaysafe

Plz mark my answer brainliest✍️✍️

Step-by-step explanation:

Some problem in system

REAL NAME - SHRESTH DUBEY

Identify the initial value and rate of change for the graph shown. (4 points)

A coordinate plane graph is shown. A line passes through the y-intercept at 1 and through the point 5 comma 4.

Group of answer choices

Initial value: 1, rate of change 5 over 3.

Initial value: 1, rate of change 3 over 5.

Initial value: 3 over 5., rate of change: 0

Initial value: 5 over 3., rate of change: 0

Answers

Answer:

a

Step-by-step explanation:

Answer:

The answer is B.

Step-by-step explanation:

y=mx+b

point (5,4)

x=5

4=m(5)+1

5m=3

m=3/5

rate of change = 3/5

What is 3 x 3 1/4?

Please help

Answers

Answer:

3 times 3 1/4 is 13 times 3 which is 39

Step-by-step explanation:

If g(x) is the inverse of f(x), what is the value of f(g(2))?

Answers

Answer:

2

Step-by-step explanation:

took it on edg

18 lb 3 oz + 25 lb 5 oz
(Have the answer as lbs and oz not a decimal)

Answers

Answer:

43lb 8oz

Step-by-step explanation:

add 18lb and 25lb which makes 43lb

and then add the oz of 3oz and 5oz which makes 8oz

7.
If 3 tickets to a certain show cost $13.20, what would 7 tickets cost?

What is this answer?

Answers

Answer:

$ 30.8

Step-by-step explanation:

ratio and proportion:

3 tickets  = 7 tickets

$13.20            x

then cross multiply:  3 (x) = 13.20 (7)

simplify: 3x = 92.4

solve for x = 92.4 / 3

x = $ 30.8

therefore,

7 tickets costs $ 30.8

Veronica takes of an hour to write of a page of calligraphy.
How long will it take Veronica to write one page of calligraphy?

Answers

Using proportions, it is found that it will take Veronica 4/3 of an hour to write one page of calligraphy.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, it is found that she takes 1/3 of an hour to write 1/4 of a page of calligraphy. How long it takes her to write a page?

The rule of three is:

1/3 hour - 1/4 page

x hours - 1 page

Applying cross multiplication:

[tex]\frac{x}{4} = \frac{1}{3}[/tex]

[tex]x = \frac{4}{3}[/tex]

It will take Veronica 4/3 of an hour to write one page of calligraphy.

More can be learned about proportions at https://brainly.com/question/24372153

PLS HELP ITS VERY EASY!

Answers

Answer:

1. 3 19/24

2. 5 19/45

Step-by-step explanation:

hope this helps! :)

Answer for MONEY. :) :)

Answers

Answer:

i would say <2= 80?

Step-by-step explanation:

im not pretty sure

Eighth grade
W.15 Find the number
You have prizes to reveal! Go
How many solutions does this equation have?
-4p + 8 = -2p
no solution
one solution
infinitely many solutions

Answers

Answer:

one solution because you combine like terms and your answer is p=4

Where the red dot Located and explain please

Answers

Answer:

do u have a pic that has a red dot if u do then that would be great

Step-by-step explanation:

NEED PIC

Solve the equation: 3x − x − 5 = 2(x + 2) − 9 No solution, 1, All real numbers, 0

Answers

Answer:

I hope this helps

Step-by-step explanation:

Simplifying

3x + -1x + -5 = 2(x + 2) + -9

Reorder the terms:

-5 + 3x + -1x = 2(x + 2) + -9

Combine like terms: 3x + -1x = 2x

-5 + 2x = 2(x + 2) + -9

Reorder the terms:

-5 + 2x = 2(2 + x) + -9

-5 + 2x = (2 * 2 + x * 2) + -9

-5 + 2x = (4 + 2x) + -9

Reorder the terms:

-5 + 2x = 4 + -9 + 2x

Combine like terms: 4 + -9 = -5

-5 + 2x = -5 + 2x

Add '5' to each side of the equation.

-5 + 5 + 2x = -5 + 5 + 2x

Combine like terms: -5 + 5 = 0

0 + 2x = -5 + 5 + 2x

2x = -5 + 5 + 2x

Combine like terms: -5 + 5 = 0

2x = 0 + 2x

2x = 2x

Add '-2x' to each side of the equation.

2x + -2x = 2x + -2x

Combine like terms: 2x + -2x = 0

0 = 2x + -2x

Combine like terms: 2x + -2x = 0

0 = 0

Solving

0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

A factory makes 23 fear of rope
per minute. How mary text of rope
will the factory make in 7 minutes,

Answers

Answer: 2346

Step-by-step explanation:

The activity in Jamal's savings account for the month of December is shown in the table below.
Jamal's Savings Account
Starting Balance
$232
Deposit
$57
Deposit
$16
Withdrawal
$28
Withdrawal
-$42
Deposit
$105
Withdrawal
-$54
What was Jamal's account balance at the end of the month?
O $534
o $410
O $286
O $54
No

Answers

Answer:The answer is 286

Step-by-step explanation:just add and subtract

Answer:

C: $286

Step-by-step explanation:

add and subtract them

The average high temperature during the hottest month in Beijing, China, is 72°F. The average high temperature during the coldest month in Beijing is 18°F. The function t = 27 cosine (pi/6(m-6)) + 45, where m represents the number of months after January, models the temperature throughout the year in Beijing.

What is the first month in the year when the temperature reaches 55°F?
A. March
B. April
C. July
D. September

Answers

Answer:

It's April

Step-by-step explanation:

Answer: B

April

Step-by-step explanation:

Which of the following is an example of a
set of like terms?
a. {197, 19,y}
b. {18x, -X, 21x}
c. {15, 20, 25y}
d. {-2x, -2y, -2xy)

Answers

Answer: B


Explanation: it is the only one with all like terms.

. Paris is saving to take the SAT prep course that costs $350. So far, she has saved $180, and she
adds $17 to her savings each week. How many more weeks must she save to be able to afford
the course?


Answers

Answer:

10 weeks

Step-by-step explanation:

Use the equation 180+17w=350

Consider the following figure where l1 and l2 are parallel and cut by transversals g1
and g2.

Part A: Determine the values of m, n, v, and r.

Part B: if m|o=8p-12, then determine the value of (p/1/4)


Help please

Answers

Answer:

helppppp

Step-by-step explanation:

Answer:

m: 88

n: 112

v: 88

r: 112

Line g has an equation of y = -9x - 9. Perpendicular to line g is line h, which passes
through the point (9,-5). What is the equation of line h?

Write the equation in slope-intercept form. Write the numbers in the equation as proper fractions, improper fractions, or integers.

Answers

Answer:

y=1/9x - 6

Step-by-step explanation:

perpendicular lines have slops that are the negative reciprocal of one another. After you find the slope you then plug in the point to find b using the equation: -5=1/9(9) + b .

Cant figure out the two solutions, my answer was wrong so I think my method is solving it isn't right. Can someone help? :'D

Answers

Answer:

x = 133                                         x = -7

Step-by-step explanation:

| x/7 - 9| = 10

There are two solutions, one positive and one negative

x/7 - 9 = 10             x/7 - 9 = -10

Add to to each side

x/7 - 9+9 = 10+9             x/7 - 9+9 = -10+9

x/7 = 19                              x/7 = -1

Multiply each side by 7

x/7 *7 = 19 *7                             x/7*7 = -1*7

x = 133                                         x = -7

(3.8•10^7)-(7.7•10^7)

Answers

Answer:

=-39000000

Step-by-step explanation:

Hope this helps (:

need help with this please
Problem-solving Ava and Ben set the alarms on their phones to sound at 6:30 am
Both alarms sound together at 6:30 am.
Ava's alarm then sounds every 24 minutes.
Ben's alarm then sounds every 30 minutes.
Use the lowest common multiple to find out when both alarms next sound
together.​

Answers

Answer:

08:30 am

Step-by-step explanation:

30 * 1 =30            24 * 1 = 24

30* 2 = 60           24 * 2 = 48

30 * 3 = 90          24 * 3 = 72

30 * 4 = 120         24 * 4 = 96

                            24 * 5 = 120

The lowest common multiple ist 120.

06:30 am + 120 min = 08:30 am

Add the equations 2x-3y=-1 + 3x+3y=26 A. 5x-6y=-27 B. 5x=27 C. 6y=25 D. 5x=25​

Answers

Answer:

D) 5x = 25

Step-by-step explanation:

-1+26 = 25

2x + 3x = 5x

-3y + 3y = 0

Answer:

pretty sure it is b

Step-by-step explanation:

Solve for m
y= 4mx – 5

Answers

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[tex]y = 4mx - 5[/tex]

Add sides 5

[tex]y + 5 = 4mx - 5 + 5[/tex]

[tex]y + 5 = 4mx[/tex]

[tex]y + 5 = m \times (4x)[/tex]

Divide sides 4x

[tex] \frac{y + 5}{4x} = \frac{m \times 4x}{4x} \\ [/tex]

[tex] \frac{y + 5}{4x} = m \\ [/tex]

[tex]m = \frac{y + 5}{4x} \\ [/tex]

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Isolate the variable by dividing each side by factors that don't contain the variable.

M=y/4x + 5/ 4x

Find the rate of change from the given table

Answers

260 feet per minute is the correct answer
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