−x + 2y − z = 0
−x − y + 2z = 0
2x − z = 8

Answers

Answer 1

Step-by-step explanation:

several possibilities to solve this.

let's start with subtracting the second equation from the first

-x + 2y - z = 0

- -x - y +2z = 0

-------------------------

0 3y - 3z = 0

y - z = 0

y = z

now we use this in e.g. the first equation :

-x + 2z - z = 0

-x + z = 0

z = x (therefore, also x = y)

now we use this in the third equation :

2x - x = 8

x = 8 = y = z


Related Questions

What is g(x)?
10-
у
5
X
+
10
d
A
-5
-10
A. g(x) = -1x1
B. g(x) = -x
C. g(x) = -x2
D. g(x) = -2X

Answers

C

Step-by-step explanation:

This has a U like shape so it a parabola.

Parabola correlate with quadratic functions

[tex]y = {ax}^{2} + bx + c[/tex]

Since it Going down, the answer is C -x^2.

The function whose graph is given is g(x) = -x²

What is a function?

A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

Given that a graph, we need to find its function,

Since, the graph is a curve opened downwards, so it is a parabola, opened downwards,

The equation of the parabola is given by y = ax²+bx+c

Therefore, out of the given options we can say that the function is y = x²

Hence the function whose graph is given is g(x) = -x²

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Type the correct answer in each box.

Quadrilateral EBCD is an isosceles trapezoid with m∠EDC = 110°, m∠ABC = 133°, and m∠DEA = 114°.

m∠DEB = __°
m∠BCD= __°
m∠EAB= __°​

Answers

Answer:

m∠DEB = _70

m∠BCD= _110

m∠EAB= _73_°​

Step-by-step explanation:

To find ∠DEB:

Take the angle of ∠EDC, which is 110°. We know the total degree in a triangle is 180°. So, we do 180° - 110° to get 70°.

To find ∠BCD:

Because EBCD is an isosceles trapezoid, this means that ∠D and ∠C both have the congruent angles. Since we know ∠EDC is 110°, this means that ∠C is also 110°.

To find ∠EAB:

We know that m∠ABC is 133° and ∠DEA is 114°. However, both angles count both the triangle and trapezoid. Previously we figured out that ∠DEB is 70°. We'll take the angle of ∠DEA and subtract the angle of ∠DEB from it, which gets us 44°. To figure out the angle of ∠B, we take the angle of ∠ABC and subtract 70° or the angle of ∠DEB, which gets us 63°. Now we take the total degree of a triangle, 180° and minus both 44° and 63° from it, which is 73°.

- 2021 Edmentum

What is the volume of a cone

Answers

what is the radius and height of it?

Which pair of triangles can be proven congruent by SAS?

Answers

Answer:

The first one

Step-by-step explanation:

SAS postulate says that if two sides and the included angle of a triangle are equal to two sides and the included angle of another triangle, then the one triangles are said to be congruent.

find the slope of (5,-6) and (-1,8)

Answers

the slope is -14/6 or the simplified version is -7/3

In a class of 50 students, suppose 27 are right-handed, 9 are left-handed, and 14 are ambidextrous. All but 2 of the left-handed are also left-foot dominate. If one student is randomly selected from the class. find the probability of choosing a left-handed student who is right-foot dominate

Answers

2/50 = 1/25 i think


1/25 is my answer

p-3 1/5=7 1/3 I need help​

Answers

We have:

[tex]p-3\frac{1}{5} =7\frac{1}{3} => p=7\frac{1}{3}+3\frac{1}{5}= 10\frac{8}{15}[/tex]

ok done. Thank to me :>


6. Give examples of methods to safeguard inventory.


Answers

Answer:

1. Security Technology. ...

2. Security Personnel. ...

3. Inventory Audits. ...

4. Just-in-Time Inventory.

Step-by-step explanation:

Reviewing a few examples of safeguarding inventory can shed light on common inventory security methodologies, helping you to implement the ideal inventory safeguards for your business.

Security Technology. ...

Security Personnel. ...

Inventory Audits. ...

Just-in-Time Inventory.

Find the length x. Please help

Answers

Step-by-step explanation:

# easy learning

good luck and god Blees you

Ok done. Thank to me:>

Evaluate the expression 3 x ; for x = 7

Answers

This would become 3(7) because of x = 7 in the original equation of 3x and the answer would be 21.

Answer:

3(7)= 21

Step-by-step explanation:

3 x

This means you are multiplying.

x = 7

3(7)= 21

Can someone please give me the answers for both I will mark u brilliant. asp I need answers for both questions

Answers

so 7 x 5.5 = 35.5,

250 x 5.5 = 1375

1/5 of 1375 = 275

2/5 = 550, 3/5 = 825

he spent 825

HELP PLS 15 POINTS first best is brainliest
What is the area of this figure?

Enter your answer in the box.

mm²

Answers

Answer:14mm

Step-by-step explanation:

Help I will give brainliest

Answers

the inequality is 8 (w+18) ≤ 19

Answer: -15.625

Step-by-step explanation:

Let w represent the number:

8 (w + 18) ≤ 19

[tex]\frac{8\left(w+18\right)}{8}\le \frac{19}{8}[/tex]

[tex]w+18\le \frac{19}{8}[/tex]

[tex]w+18-18\le \frac{19}{8}-18[/tex]

[tex]w\le \:-\frac{125}{8}[/tex]

-125/8 or -15.625

Check:

[tex]8\left(-15.625+18\right)\le \:19[/tex]

[tex]8\cdot \:2.375 \leq 19[/tex]

[tex]19 \leq 19[/tex]

Therefore, the number is -15.625

Help. i need it ASAP

Answers

Answer:

The third choice is correct.

Step-by-step explanation:

7 2/5= 2/3x -4 1/2 plz helpp

Answers

Answer:

3 :)

Step-by-step explanation:

90.8 is 39% of what?

Answers

Answer:

232.820513

Step-by-step explanation:

Let the number you are looking for is x,

equation,

90.8 * x = 39

90.8/39 = 2.32820513

Now we multiply 100 because we are dealing with percentages so,

2.32820513 * 100 = 232.820513

So, the answer is 232.820513

Hope this helps! Good luck to everyone!

(2,170), (5,365) slope

Answers

Answer:

To find the slope given two points, use the slope formula. The slope formula is Y2-Y1/X2-X1. Substitute in the given points and solve.

365-170/5-2

195/3

65

The slope of the two points is 65.

Hope this helps! :)

The population of a town was 5655 in 2010. The population grows at a rate of 2.6% annually.
(a) Use the exponential growth model to write an equation
that estimates the population t years after 2010.
(b) Fill in the following table for each value of . Show your work. You may use a calculator to
calculate the final answer. Round your answers to the nearest whole number.

Answers

The exponential equation used to represent the population of the town is given by y = 5655(1.026)ˣ

An exponential function is in the form:

y = abˣ

where y, x are variables, a is the initial value of y and b is the multiplier.

Let y represent the population remaining after x years.

The population grow at the rate of 2.6% annually. Hence:

b = 100% + 2.6% = 1.026

There are initially 5655 people, hence a = 5655.

The equation becomes:

y = 5655(1.026)ˣ

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0/35-31/35-2/35= Reduce if possible

Answers

Hi!

I will write it like this to make it easier to see:

[tex]\frac{0}{35} - \frac{31}{35} - \frac{2}{35}[/tex]

Seeing this, we can right away take the [tex]\frac{0}{35}[/tex] away to make it easier, because 0/35 is 0. Now, we are left with:

[tex]-\frac{31}{35} - \frac{2}{35}[/tex]

Since the denominators (the 35s) are the same, we do not have to mess with those. We simply subtract the numerators (-31 - 2) and we get -33. Therefore, your answer is :

[tex]-\frac{33}{35}[/tex]

Hope this helps! Have a great day! :D

an object has a mass of 24 grams and a volume of 6cm3. what is the density

Answers

Answer:

4 grams

Step-by-step explanation:

8g-f g=-1 f=4 Please show work I have no clue how to do it

Answers

hope it help u and good luck

At the start of summer break, Jada decided to save some of the money she earned helping out her
neighbors to use during the school year. Jade starts by putting $20 into a savings jar in her room
and plans to save $10 a week.
a.
What is the total amount Jada will have saved after 1 week?

Answers

Answer:

$90

Step-by-step explanation:

1 week=7 days

(7*10)+20=90

2+2 THIS IS A LIFE OR DEATH QUESTION PLZZ

Answers

The ANSWER for this question is 2+2=4

UMMM I THINK IT'S UH A CARROT, I'M SMART the real answer is 4 though lol

An account earns simple interest. Find the annual interest rate. I = $60 P = $500 t = 2 years The annual interest rate is %. 10​

Answers

Answer:

100

Step-by-step explanation:

A = P(1 + rt)

A = 500(1 + (0.1 × 2)) = 600

A = $600.00

600-500= 100

is it 90 IF NOT CAN SOMEONE TELL ME please

Answers

Answer:

90

Step-by-step explanation:

1000 + 500 = 1500mg (for 1 day)

1500 * 30 = 4500mg (1 month)

4500 : 500 = 90 tablets

What is the least common multiple of 9 and 8

Answers

Answer:

Frequently Asked Questions on LCM of 8 and 9

Find the prime factorization of 8 8 = 2 x 2 x 2

Find the prime factorization of 9 9 = 3 x 3

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm: LCM = 72 = 2 x 2 x ...

Therefore, the least common multiple of 8 and 9 is 72.

Step-by-step explanation:

I need help with this one. I will give someone brainliest.

Answers

do u want numbers or are there options?

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:

y = 2

Step-by-step explanation:

there is no slope but the line is at 2 so 2 is the y-intercept so y = 2.

As a car ages, its value decreases. The value of a particular car with an original purchase price of $27, 200 is modeled by the following function, where
c is the value at time t, in years.
c(t) - 27, 200(1 -0.21)
a. What is the value of the car when it is 4 years old?
The value of the car after 4 years is Sl
b. What is the total depreciation amount after 5 years?
After 5 yehrs, the total depreciation amount is s[

Answers

a. The value of the car when it is 4 years old is approximately $13,645.23.

b. The car has depreciated by about $16,367.54 after 5 years.

To find the value of the car when it is 4 years old, we can substitute t = 4 into the given function:

c(4) = 27,200(1 - 0.21)^4

c(4) = 27,200(0.79)^4

c(4) ≈ 13,645.23

b. To find the total depreciation amount after 5 years, we need to find the difference between the original purchase price ($27,200) and the value of the car after 5 years. Using the function given, we can find the value of the car after 5 years by setting t = 5:

c(5) = 27,200(1 - 0.21)^5

c(5) = 27,200(0.79)^5

c(5) ≈ 10,832.46

Therefore, the total depreciation amount after 5 years is:

27,200 - 10,832.46 ≈ $16,367.54

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If answer is correct you will be marked as brainliest
What is the discriminant of the polynomial below?
4x^2+4x+1

A. 32

B. -12

C. -4

D. 0

Answers

Answer:

Discriminant is [tex] {b}^{2} - 4 \times a \times c [/tex]

[tex]16 - 4 \times 4 \times 1 = 0[/tex]

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