1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vfiekz [6]
3 years ago
13

Solve for x,y, and z and please explain answer. 4x-3y+2z=-29 6x+2y-z=-16 -8x-y+3z=23

Mathematics
1 answer:
Setler [38]3 years ago
3 0
 8x - 6y + 4z = -58
-8x -   y + 3z =  23
      -7y + 7z = -35
7 (z-y) = -35
z - y = -5
z = y - 5
4x - 3y + 2y - 10 = -29
6x + 2y - y + 5 = -16

4x -  y = -19
6x + y = -21

10x = -40

x = -4
y = 3
z = -2

Thank you very much.
(Took me too long...)
You might be interested in
A plant is 2 inches tall. Suppose that its height doubles each day for 4 days. How tall would the plant be after the fourth day?
sp2606 [1]

Answer:

32 inches

Step-by-step explanation:

Each day its height doubles.

Day 1: 2

Day 2: 4

Day 3: 8

Day 4: 16

Day 5: 32

3 0
3 years ago
Read 2 more answers
How to factorise 7x+14
gregori [183]
<span>7x+14 = 7(x+2)
_____________</span>
8 0
3 years ago
Use the product of powers property to simplify thr numeric expression:<br>4⅓×4⅕​
bazaltina [42]

Answer:

your answer is 91 over 5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Order the following expressions from least to greatest<br><br> (Quick Please)
ivann1987 [24]
Square root (3) < square root (pie) < 2
6 0
2 years ago
According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 20
Murljashka [212]

Answer:

There is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.  

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1432

p = 23% = 0.23

Alpha, α = 0.05

Number of theft complaints , x = 321

First, we design the null and the alternate hypothesis  

H_{0}: p = 0.23\\H_A: p < 0.23

This is a one-tailed test.  

Formula:

\hat{p} = \dfrac{x}{n} = \dfrac{321}{1432} =0.2241

z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Putting the values, we get,

z = \displaystyle\frac{0.2241-0.23}{\sqrt{\frac{0.23(1-0.23)}{1432}}} = -0.5305

Now, we calculate the p-value from the table.

P-value = 0.298

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.

5 0
2 years ago
Other questions:
  • Which number line represents the solution set for the inequality 2x – 6 ≥ 6(x – 2) + 8?
    10·2 answers
  • 7233 divided by 164 equals
    5·1 answer
  • 4+1/3x=5/12x-6 <br><br> solve for x
    11·2 answers
  • What happens when you multiply a positive number by a number greater than 1?
    11·1 answer
  • You got $300 for Christmas. You want to buy a hoodie that cost $52, a pair of pants that were $45 and you need shoes. Write an i
    13·2 answers
  • A shape with 5 sided.two sides are each 5 inches long. two sides are 4 inches long .the perimeter of the shape is 27 inches.what
    11·1 answer
  • What is the value of 29.94 × 05 is approximately
    15·1 answer
  • 2.
    14·1 answer
  • Ben buys baseboard for a bedroom. The perimeter of the bedroom, excluding
    12·1 answer
  • Ok here’s another question
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!