Solve the system using matrix. Leave answer (x,y,z) 4x+y - 2z=-6, 2x - 3y+3z=9, x - 2y = 0

Answers

Answer 1
https://socratic.org/questions/how-do-you-solve-the-system-x-2y-z-2-2x-3y-3z-3-and-2x-3y-2z-2#463729

Related Questions

A research company surveys people in a community about a new recycling program. The company expects 6,000 people to respond favorably. If there is a percent error of 2.5%, what is the range of the number of people who are expected to respond favorably to the survey?

Answers

Answer:

5850

Step-by-step explanation:

is the question complete? if so this is the answer pls check if the question has more details

write the general form of the equation of a line that is parallel to the given line and passes through the given point.
y= -1/3x+2 (-4,0)

Answers

Answer:

y = -1/3x - 4/3

Step-by-step explanation:

y = -1/3x + b

0 = -1/3(-4) + b

0 = 4/3 + b

-4/3 = b

there are 84 red marbles for every 14 blue marbles what shows the simplest ratio form

Answers

Answer:

I think its 6 because I think its about division

Jennifer is renting a bicycle to ride along the beachfront.the rental charges include a fixed charge of $3 and an additional cost of $1.75 per hour. Which equeation represents the total rental charges for the bicycle ,T.if Jennifer rents it for n hours?

Answers

Answer:

T=1.75n+3

Step-by-step explanation:

all i did was combine the terms together. T is the total it costs for the initial rental charge (3) plus the number of hours times 1.75

Which describes the solution of the inequality y > −15? Select all the points that are part of the solution.

Answers

Step-by-step explanation:

y > -15

y is bigger than -15

= -14 , -13 , -12 , -11 , -10 , etc . . .

Sara is saving money to but a new Iphone. Her saving habit is modeled by the function S(w)=20w+15,where w is equal to the number of weeks. write a statement that describes what S95)=115 means

Answers

Answer:

It means that when Sara save money for 5 weeks, she will get a total amount of 115 money.

$85 jeans, 7% tax thanks

Answers

Answer:

$79.05

Step-by-step explanation:

Simply convert 7% into a decimal which os 0.07.  Multiply 0.07 by 85 and subtract it since it's a tax, which means it's deducted. Which will give you $79.05.

"Find the total area of the shape"
How should I solve this? The answer is 31.9 cm²

Answers

Answer:

31.9 cm² (3 s.f.)

Step-by-step explanation:

[tex]\boxed{area \: of \: sector = \frac{θ}{360º} \times \pi {r}^{2} }[/tex]

∠AOD

= 360° -60° - 120° -45° (∠s at a pt.)

= 135°

Area of shape

[tex] = \frac{60°}{360°} (\pi)({2}^{2}) + \frac{120°}{360°} (\pi)(3^{2} )+ \frac{45°}{360°}(\pi)( 5 {}^{2}) + \frac{135°}{360°} (\pi)(3 {}^{2} )[/tex]

[tex] = \frac{1}{6} (4\pi) + \frac{1}{3} (9\pi) + \frac{1}{8} (25\pi) + \frac{3}{8} (9\pi)[/tex]

[tex] = \frac{4}{6} \pi + \frac{9}{3} \pi + \frac{25}{8} \pi + \frac{27}{8} \pi[/tex]

[tex] = \frac{61}{6} \pi[/tex]

= 31.9 cm² (3 s.f.)

PLEASE HELP!!!!!!!!!!!! URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

C. Yes, because every x-value corresponds to exactly one y-value
The answer should be c

Hope this helps

aquarium 1 contains 18.6 gallons of water. jaythen will begin filling aquarium 1 at a rate of 1.2 gallons per minute. aquarium 2 contains 45.6 gallons of water. palchin will begin to draining aquarium 11 at a rate of 0.8 gallons per minute . after how many minutes both aquariums contain the same amount of water ?

Answers

Answer:

2.8

Step-by-step explanation:

g(x) =
x + 3, find g(1).

Answers

Answer:

Substitute 1 for x.

g(1)= 1 + 3

g(1)= 4

:)

Answer:

g(1) = 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Functions

Function Notation

Step-by-step explanation:

Step 1: Define

Identify

g(x) = x + 3

Step 2: Evaluate

Substitute in x [Function g(x)]:                                                                         g(1) = 1 + 3[Order of Operations] Add:                                                                              g(1) = 4

A store buys a TV for $100. They sell it for a 70% mark-up. What is the new cost of the TV?

Answers

Answer:

170

Step-by-step explanation:

Since the TV is worth $100 initially but has a 70% markup, it means they increased the price by the percent markup

100 x .70 = 70

100 + 70 = $170

The new cost of the TV sold at this store is equal to $170.

Given the following data:

Cost price = $100Markup = 70%

To determine the new cost of the TV sold at this store:

How to calculate markup price.

We would calculate the markup price by multiplying the cost price by the markup.

[tex]Markup\;price = \frac{70}{100} \times 100\\\\Markup\;price = 0.7\times 100[/tex]

Markup price = $70

Now, we can find the new cost of the TV:

[tex]New\;cost = Markup\;price + Cost\;price\\\\Total\;cost = 70 + 100[/tex]

Total cost = $170.

Read more on markup here: https://brainly.com/question/11676563

The second term of a geometric progression is 5 and the fourth term is 31.25. Find the
a)common ratio,r, if r is positive
b)first term
c)sum of the first five terms

Answers

Answer:

r = 2.5

Sn = 51.55

Step-by-step explanation:

5r^2 = 31.25

r^2 = 31.25/5

r = sqrt 6.25

1. 3 − = 9
2. − 5 = 2
3. − = 16
4. 2 − = 5
5. − 3 = 4​

Answers

Answer:What is the simplified form of each expression? A 9−2. 9-2 = 1. 92 ... Problem 4. Problem 3 continued. Problem 2. B. 1 x. −5. 1 x -5 = 1 , x-5.

Step-by-step explanation:

It was -12F last night. The weatherman predicts that it will be 25 warmer by noon. What will the temperature be by noon?

Answers

Answer:

13°F

Step-by-step explanation:

-12+25

is the same as

25-12

which gives you 13

helppp please 8th grade algebra 1

Answers

Answer:

6x^3+12^2-2x-4

Step-by-step explanation:

It's number four

$75, 12.5%, 1 year simple interest

Answers

Answer:

$9.38

Step-by-step explanation:

I think you want the interest right?

so then 75 * 0.125 * 1 = 9.375

rounding it gives 9.38

look at that attachment and help me, please

Answers

The original price of the phone was about $319.80.

Fill in that number for p to get your answer.

pls help me fill it out​

Answers

Going down it’s

11
6
23
12
I’m not sure of answer but I learned it today soooo

James has some baseball cards. Matt has three times as many baseball cards as James. Together they have more than 20 baseball cards. How many baseball cards could James have?

Answers

Answer:

He could have 7 or more cards.

Is there enough information to prove the two triangles congruent? If yes, write the congruence statement and name the postulate you would use. If no, write not possible and tell what other information you would need.

Answers

Answer: What the pic tell you what upload a new question with a pic and ill help

Step-by-step explanation:

What is the slope of this line?

Enter your answer as a whole number or a fraction in simplest form in the box.

Answers

Answer:

Step-by-step explanation:

(-2, 0) (0, -2)

(-2 - 0)/(0 + 2) = -2/2= -1

My question is in the picture, I’ll give you a BRAINLIEST and your getting rewarded 50 POINTS.

Answers

Answer:

The form for a point-slope equation is y-y1=m(x-x1), where ”m” is the slope and (x1,y1) is a point on the graph. Substituting in the slope and point, the equation is y+7=-4(x-2).

:)

Question 6
The combined weight of 5 student back packs is 36.9 pounds. What is the approximate weight of 1 back pack?

Answers

Answer:

The approximate weight of 1 student back pack is 7.38 pounds.

Step-by-step explanation:

We have to find the unit rate of one back back. All we need to do is divide the 5 backpacks by the number of pounds, so:

36.90 ÷ 5 = 7.38

Answer: The approximate weight of one back pack is 7.38.

Step-by-step explanation: Divide the combined weight by 5. Hope this helps.

3y2 + 4ab + 7y2 + ab

Answers

Answer:

10 y^2  + 5ab

Step-by-step explanation:

3y^2 + 4ab + 7y^2 + ab

Combine like terms

3y^2 + 7y^2   + 4ab +ab

10 y^2  + 5ab

if an 8 pound bag of rice cost $9.60, what is the cost of 1 pound of rice?

Answers

Answer:

1.20 a bag

Step-by-step explanation:

Divide 9.60 by 8

What should be the first step in adding these equations to eliminate y? 12x-2y=-1

Answers

Answer:

just click the picture.

Step-by-step explanation:

BRAINLEST please I need BRAINLEST

Hey guys could anyone please help me with this question?
I kinda need this ASAP to grad and um also please be relevant to the question!
THANKS TO THE SOMEONE WHO HELPED!

2. A coupon has been issued for crackers at the local grocery store. The crackers originally retail for $3.79 a box and the coupon is good for 10% off the price marked on the shelf. When you arrive at the store the crackers are already marked down by 15%. What is the price you will pay for the box of crackers?

Answers

Answer:

$3.54

Step-by-step explanation:

$3.79-25% (because you add the 15% + 10%)

which is $3.54

Answer:

$2.90

Step-by-step explanation:

start with original price

$3.79

marked down 15%

3.79 × .15 = .5685 or .57

3.79 - .57 = 3.22 price on shelf

minus 10% coupon

3.22 × .1 = .322 or .32

$3.22 - .32 = $2.90

Please help me with this math question!

Answers

Answer:

175 to 1

Step-by-step explanation:

Can someone please do this for me?

Answers

Answer:

64°

Step-by-step explanation:

So supplement angles are equal to 180, so first our two angles added together will be 180:

x + x = 180

Now one of these angles is 6 greater than half:

x + (x/2 + 6) = 180

Then we will solve for x:

x + (x/2 + 6) = 180

x + x/2 + 6 = 180

x + x/2 = 174

[tex]\frac{3}{2}[/tex]x = 174

x = 116

Plug it back in:

x + (x/2 + 6) = 180

         /\

     x/2 + 6

   (116)/2 + 6

        64

To check:

116 + 64 = 180 ✓

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