Please Help! SCAMMERS WILL BE REPORTED. Use Gauss-Jordan elimination to solve the following linear system
-4x + 4y + 5z = 9
-2x + 2y + z = 3
-4x + 5y = 4

Answer:

72 sq ft.

Step-by-step explanation:

Surface area of Triangular prism=[2*(1/2)*3*4]+(5*5)+(3*5)+(4*5)=12+25+15+20=72 sq ft.

Step-by-step explanation:

Since this circle is partial we will divide the area of the whole circle by 2

the area of a circle is expressed by [tex]\pi r^2[/tex] so insert 14 for the radius.

[tex]14^2\pi[/tex]

[tex]196\pi[/tex]

divide the area by 2

[tex]98\pi=307.876[/tex]

Hope that helps :)

Answer:

4.094

Step-by-step explanation:

in our thousandths spot is the 4 4.094, in our ten-thousandths spot is the 3 4.0943, so we do not add one, so our final answer is 4.094

Answer:

A

Step-by-step explanation:

Answer:

28 ÷ n

Step-by-step explanation:

You want to get a number divided off 28

So you add the division symbol as the algebraic expression.

Answer:

A. ΔABC, ΔFDE and ΔGIH

Step-by-step explanation:

From the given descriptions for the three triangles, it can be inferred that;

DE ≈ HI ≈ BC

AB ≈ FD ≈ GI

m<B = m<D = m<I

So that by Side-Angle-Side (SAS) relations among the triangles, the three triangles are congruent.

This implies that: ΔABC ≅ ΔFDE ≅ ΔGIH

The appropriate answer to the given question is A.

Answer:

D          SD= sqrt(22.5D)   Average Rate of Change            

47                       32.52  

50                       33.5                                            0.34

56                       35.50                                   0.33

60                       36.74                                   0.31

62                       37.35                                          0.305

65                       38.24                                   0.3

In the context of this problem, the average rate of change is the rate at which the car decelerates as it skids. As the distance that the car skids increases, the rate at which the car decelerates decreases at a gradual rate.

Step-by-step explanation:

Is this a question? and no they dont, the numerater is the number on top.

Answer: No, 1/6 and 2/6 do not have the same numerator.

Step-by-step explanation:

this is because the 1 in 1/6 is a numerater and the 6 is the denominator, this works the same for 2/6

Answer:

you have to find common denominators first.

Step-by-step explanation:

24 is their common

8x2=16/24

3x3=9/24

your first fraction is larger!

please consider marking me as brainliest! Have an amazing day lovely!

answer:

2/3

explanation:

convert to a decimal then compare the two and the one with the biggest number is greater

Answer:

500

Step-by-step explanation:

Answer:

30cm3

Step-by-step explanation:

Volume=Base area *height

Base area is a triangle=1/2 *base*height

1/2*3*4=6cm2

Height=5cm

Volume=6*5=30cm3

Answer:

10 m³

Step-by-step explanation:

My apologies for attaching the explanation in a pic, brainly wouldn't let me upload my text answer for some reason.

Answer:

The 90% confidence interval for the true mean natural gas bill for homes in the 19808 zip code area in February is between $292.48 and $331.32

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 21 - 1 = 20

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 20 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 1.7247

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 1.7247\frac{51.60}{\sqrt{21}} = 19.42[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 311.9 - 19.42 = $292.48

The upper end of the interval is the sample mean added to M. So it is 311.9 + 19.42 = $331.32

The 90% confidence interval for the true mean natural gas bill for homes in the 19808 zip code area in February is between $292.48 and $331.32

Answer: 19 yd

Step-by-step explanation:

hope this helped. :)

Answer:

x and y

Step-by-step explanation:

Those are variables that could be any number. The integers are considered to be coefficients.

Answer:

The first choice

Step-by-step explanation:

Answer:

960.

Step-by-step explanation:

Answer:

84

Step-by-step explanation:

6 * 14 = 84

Area: 69

So we can split the figure into two sections. One rectangle, and one triangle.

The rectangle's area would be 54.

Since the length of the figure is 14 in total. we can subtract 9 from 14

5 is the height of the triangle

to find the area of a triangle, it is height x width divided by 2

so 5 x 6 divided by 2 = 15

54 + 15 = 69

Answer:

wx-x=d

wx = d + x

x = d/w + x/w

Step-by-step explanation:

Answer:

x = d/(w-1)

Step-by-step explanation:

factor out 'x' as first step:

x(w - 1) = d

now divide by w-1:

x = d/(w-1)

 1.215 This is the answer

It is divided by 105

Answer:

1.215

Step-by-step explanation: did this same question

Answer:

A is 16, B just draw a line down from the inside square to make a rectangle, C. just multiply all the numbers around the square

Step-by-step explanation:

<<

Answer:

A) 72 in²

B) From the bottom right corner of the shaded square, draw a line either straight down or to the right.

C) 56 in²

Step-by-step explanation:

A) 8x9=72 in²

B) From the bottom right corner of the shaded square, draw a line either straight down or to the right.

C) The shaded area is 4x4=16, so you need to subtract that from the 72.

72-16=56 in²

Answer:

1/6 = 4/24   5/8 = 15/24

15 - 4 = 11      11/24 cups of milk left

Step-by-step explanation:

ST is a Straight line, x=108 degrees.

Step-by-step explanation:

Since ST is a straight line, it measures 180 degrees.

This means that:

x+(2/3)x=180

The simplified version is 5x/3=180.

Now, we multiply both sides by 3.

The equation becomes 5x=540;

which is ultimately x=108.

Therefore, ST is a straight line , x=108.

To know more about Straight line.

https://brainly.com/question/30241852

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40° is your answer

Answer:

:

< ABC+<QRS=180

m<QRS=180-140=40°

Answer:

$551.25

Step-by-step explanation:

$450 x 7.5% = 33.75

33.75 x 3 = 101.25

101.25 + 450 = 551.25

Answer:

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Answer:

  3x -5y = 4

Step-by-step explanation:

The coefficients are mutually prime integers in standard form. Here, a common factor of 8 can be removed from all of them. The result is ...

  3x -5y = 4

Answer:

I think it's this ( 40y+32/24) {See Below For More}

Step-by-step explanation:

Move all constant terms to the right-hand-side

24x=32+40y

Move all constant terms to the right-hand-side

X= 40y+32

24

The Equation Is Solved With:

X 1 = 40y+32

24

Solution Of The Equation:

X1= 40y+32

24

Answer:

In order to get the highest yield, 25 tress should be planted

Step-by-step explanation:

Given the data in the question;

Let n be number bushel, b is bushels per tree, t is number of trees

from the question, if t = 20, b = 30

and if t = 21 then b = 29

so t + b is constant

t + b = 50 ----- let this be equation

now, n = t × b

so b = n / t

hence from equation, we input b = n/t

t + n/t = 50

n/t = 50 - t

n = t(50 - t)

n = 50t - t²

now we get the derivatives

Note, The maximum amount of trees is simply where the derivative is equal zero, so;

0 = 50 - 2t

2t = 50

t = 50/2

t = 25

Therefore, In order to get the highest yield, 25 tress should be planted