Without graphing, classify the system of equations as either consistent or inconsistent.
−7x+8y=9

21x/8−3y=−6

Answers

Answer 1
How you know if a system is consistent or inconsistent or dependent without graphing:

If a consistent system has a infinite number of solutions, it is dependent. When you graph the equation, both equations represent the same line. If a system has no solution, it is said to be inconsistent. If the graphs of the lines do not intersect, the graphs are parallel and there is no solution.

Hope this helps.

Related Questions

A bag contains 8 white marbles, 4 green marbles and 3 blue marbles. 2 marbles are selected at random without replacement, find the probability both green

Answers

The probability of getting green is 4/15

Find the sum or difference. Enter the answer as a fraction, using the slash ()
as the fraction bar.

2/15+5/15

Answers

Answer:

7/15

Step-by-step explanation:

2/15 + 5/15 = 7/15

Hoped this helped.

A rectangular garden to contain 3 length segments and 4 width segments. The total amount of fencing required is 24 meters. What is the maximum possible area

Answers

Answer:

12 meters sq

Step-by-step explanation:

area= length x width

area= 3x4

area=12 meters sq

You get brainist plz

Answers

Answer:

54

Step-by-step explanation:

54

make the subject x of the formula y = 7x + 4

Answers

Answer:

[tex]x = \frac{y - 4}{7}[/tex]

Step-by-step explanation:

[tex]y = 7x + 4 \\\\y - 4 = 7x\\\\\frac{y - 4}{7} = \frac{7x}{7}\\ \\ \frac{y - 4}{7} = x[/tex]

If the value of a=2,y=3,find the value of x in ax/y=10

Answers

[tex]\dfrac{ax}y =10\\\\\implies \dfrac{2x}{3} = 10\\\\\implies 2x = 30\\\\\implies x = \dfrac{30}2 = 15[/tex]

Answer:

x = 15

Step-by-step explanation:

[Given] ax/y=10

[Rewrite] [tex]\frac{ax}{y} =10[/tex]

[Plug-in] [tex]\frac{(2)x}{(3)} =10[/tex]

[Simplify] [tex]\frac{2x}{3} =10[/tex]

[Multiply both sides by 3] 2x = 30

[Divide both sides by 2] x = 15

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

An oil company estimates that only 1 well in 20 will yield commercial quantities of oil. Assume that successful drilled wells represent independent events. If 5 wells are drilled, find the probability of obtaining a commercially successful well for the following number of times. (Round your answer to six decimal places.) exactly 1

Answers

An oil drilling company ventures into various lo- cations, and its success or failure is independent from one location to another. Suppose the probability of a success at any specific location is

Please take a look at the picture for the question

Answers

Answer:

A

Step-by-step explanation:

Write a function in any form that would match the graph shown below

Answers

9514 1404 393

Answer:

  f(x) = 2(x +2)^2(x -5)

Step-by-step explanation:

The root at x=-2 has even multiplicity. The curve is not flat there, so the multiplicity is 2, not higher. The root at x=5 has multiplicity 1. Then the factored form of this cubic is ...

  f(x) = a(x +2)^2·(x -5)

The local minimum when a=1 is about -50, so we judge the leading coefficient to be 2. The desired function is ...

  f(x) = 2(x +2)^2(x -5)

Please help answer this question picture is including

Answers

Answer:

B.15

Step-by-step explanation:

The answer is 15 because we can identify this shape as a quadrilateral kite

So, we know that a quadrilateral kite has two pairs of congruent adjacent sides

Therefore AB = AC and BD = DC

solve the equation 3/4x - 5 = x give your answers correct to 2 decimal places

Answers

Answer:

3/4x - 5 = x

= -3/10 -> -0.15

2 Decimal places = 0.150

Write the equation in point slope form of the perpendicular bisector of A(5,-8) and b(-3,1) 

Answers

Answer:

chu papi

Step-by-step explanation:

a man walks for 45 minutes at a rate of 3 mi/h then jogs for 75 minutes at a rate of 5 mi/h then rests for 30 minutes and finally walks for 90 minutes at a rate of 3 mi/h. Write a piecewise-defined function expressing the distance he traveled as a function of time.

Answers

Answer:

Sorry need points

Step-by-step explanation:

How to expand
5(2m)^3

Answers

Answer: 40m^3

Solution steps:

1. Expand (2m)^3.

5 x 2^3 m^3

2. Calculate 2 to the power of 3 to get 8.

5 x 8m^3

3. Multiply 5 and 8 to get 40.

40m^3

can someone help me with this question

Answers

well, since each bar is parallel to the adjacent one, so if A || B || C || D || E || F, then A || F.

now, for the angles, Check the picture below.

2. What is the largest composite number less than 40?

Answers

Answer:

39

Step-by-step explanation:

39

Step-by-step explanation:

13 × 3 = 39

The largest composite number less than 40 is 39

Question 8 of 10
The blue segment below is a radius of 0. What is the length of the diameter
of the circle?
A. 6.35 units
B. 25.4 units
o
12.7
C. 19.05 units
OD. 12.7 units

Answers

Step-by-step explanation:

the diameter is 2 times the radius.

so,

12.7×2 = 25.4

so, B is right.

cite a real life situation that describes the concept of direct and inverse variation. create your own word problem and answer it. present your answer with table of values, graph and equation

A need a appropriate answer, thanks...​

Answers

Step-by-step explanation:

An example of direct variation would be the relationship of distance with time when speed is constant.

d = st

Let's assume you travel at the speed of 60 mph. The distance at 0, 0.5, 1, 2 hours would be 0, 30, 60, 120 miles.

d = 60t

This is a linear relationship and produces a graph of line.

See the graph.

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

An example of inverse variation would be the time to complete the same work as number of workers increase.

t = w/p, where w is work (constant), p- number of workers

Assume 5 workers complete wok in 20 days, 10 workers do same in 10 days, 20 workers do in 5 days.

t = 100/p

This relationship produces a curved line.

See the graph.

Pls help brainlist pls help

Answers

Answer:

The slope of the function represents how much the function rises per amount that it moves horizontally.

Step-by-step explanation:

Choose the end behavior of the graph of each polynomial function

Answers

Answer:

  D, A, B

Step-by-step explanation:

The sign of the leading coefficient always tells you the end behavior on the right: positive = rises; negative = falls.

The degree of the polynomial tells you how the left- and right-end behaviors compare: even = they are the same; odd = they are opposites.

__

A) negative leading coefficient, even degree:

falls to the left, falls to the right (D)

__

B) positive leading coefficient, odd degree:

falls to the left, rises to the right (A)

__

C) negative leading coefficient, odd degree

rises to the left, falls to the right (B)

A tire manufacturer is interested in testing the fuel economy for two different tread patterns. Tires of each tread type are driven for 1000 miles on each of 18 different cars. In a separate experiment, 18 cars were outfitted with tires with tread type A, and another 18 were outfitted with tires with tread type B. Each car was driven 1000 miles. The cars with tread type A averaged 23.95 mpg, with a standard deviation of 1.79 mpg. The cars with tread type B averaged 22.19 mpg, with a standard deviation of 1.95 mpg. Let μX represent the population mean mileage for tread type A and let μY represent the population mean mileage for tread type B.


Required:

Find a 99% confidence interval for the difference μXâμY. Round the answers to three decimal places.

Answers

Using the t-distribution, it is found that the 99% confidence interval for the difference is (0.058, 3.462).

We are given the standard deviation for the samples, hence, the t-distribution is used to solve this question.

The standard errors are given by:

[tex]s_A = \frac{1.79}{\sqrt{18}} = 0.4219[/tex]

[tex]s_B = \frac{1.95}{\sqrt{18}} = 0.4596[/tex]

For the distribution of differences, the mean and the standard error are given by:

[tex]\overline{x} = \mu_A - \mu_B = 23.95 - 22.19 = 1.76[/tex]

[tex]s = \sqrt{0.4219^2 + 0.4596^2} = 0.6239[/tex]

The interval is given by:

[tex]\overline{x} \pm ts[/tex]

The critical value for a two-tailed 99% confidence interval with 18 + 18 - 2 = 34 df is t = 2.7284.

Then:

[tex]\overline{x} - ts = 1.76 - 2.7284(0.6239) = 0.058[/tex]

[tex]\overline{x} + ts = 1.76 + 2.7284(0.6239) = 3.462[/tex]

The 99% confidence interval for the difference is (0.058, 3.462).

For more on the t-distribution, you can check https://brainly.com/question/16162795

If 15 points is 13 cents how much would 5000 be?​

Answers

Answer: at least 50 dollars

Step-by-step explanation:

Step-by-step explanation:

15 points ⇒ 13 cents5000 points ⇒ x

Cross-multiply to find x:

x = 5000*13/15x = 4333 cents or $43.33

consider the following matrix. I need to know if the system has zero or infinite solutions or just one solution and if the matrix does/does not have an inverse.​

Answers

Answer:

I think it would be no solution

Step-by-step explanation:

since there is the same slope, the line would never cross. Also the determinate is 0 or 1/0, so there would be no solution

How many solutions are there to the equation below?
6x + 33 = 6(x+6)

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Let's solve ~

[tex]6x + 33 = 6(x + 6)[/tex]

[tex]6x + 33 = 6x + 36[/tex]

Here, 6x is present on both the sides of equation so they cancel out ~ therefore there is no one solution satisfying the equation ~

Answer:

there are zero solutions

\_(-_-)_/

i asked g o o g l e thats what it said

Pythagoras theorem
Please answer will mark BRAINELIST :)

Answers

Answer:

Step-by-step explanation:

Since we are to show by Pythagoras that  the square will fit inside the circle without touching the edge of the circle , this means that we must find the value of the length of the diagonal of the square using Pythagoras.

For the square to fit in without touching the edge of the circle , this means that the diagonal of the square must be less than the diameter of the circle.

Length of the square is 5cm.

Recall Pythagoras theorem: it states that

the square on the hypotenuse of a right-angled triangle is equal in area to the sum of the squares on the other two sides

=  +

= 25 + 25

= 50

Take the square root of both sides , that is

D =

D =  X  , since 50 = 25 x 2

D = 5

D ≈ 7.07

megan feeds her dog 1/2 cup of food each morning and each evening. how much food does she feed him in a 7 day week

Answers

Answer:

7 cups

Step-by-step explanation:

1/2 * 2 times per day * 7 days per week = 7

Which represents discrete data? Question 17 options: A) The price of hamburger meat per pound B) The volume of water in a swimming pool C) The number of pens in a package D) The speed of a train

Answers

Answer: C

Step-by-step explanation:

The Number Of pen in a package.

Answer:

B

Step-by-step explanation:

The number of pins in package

If the Owen family has a child in two years, how much can they expect to spend, per year, to raise the child from its birth to when it is five years old?

Answers

Answer: A. 65,250+139,560= 204,810. 204,810/18=11,378

I hope it is right

Answer:

The answer would be 13,050

Step-by-step explanation:

In order to get the answer, you have to do 65,250 divided by 5 years and you should get 13,050 on your calculator.

In a recent year, 32.4% of all registered doctors were female. If there were 47,400 female registered doctor that year, what was the total number of registered doctors?

Answers

Answer:

come, seamen or even spherm

Step-by-step explanation:

basically when the male and female get involved in sexual activity it creates a child through sperm and egg interaction. the fastest sperm wins the race and 68.6% of them are male doctors

One thousand dollars is deposited into an ordinary annuity after each 6 month period for 2 years. The account pays 4 percent interest compounded semiannually.what is the future value of the account in 2 years ??

Answers

Answer:

  $4121.61

Step-by-step explanation:

Use the formula for the balance of an ordinary annuity.

  A = P((1 +r/n)^(nt) -1)/(r/n)

  A = $1000((1 +.04/2)^(2·2) -1)/(.04/2) ≈ $4121.61

The future value of the account is $4121.61.

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