50 POINTS! Help me on 5 questions please! 10 POINTS PER QUESTION!

Answers

Answer 1

Answer: 1)

If you have at least one solution, it is consistent.
If you have no solutions, it is inconsistent.

When you solve the system of equations, you will get x = -2/3 and y = 3.5. This shows us that the system of equations is independent.
If the system of equations was dependent, you would have gotten a final result like 0 = 0.

Your final answer is C) Consistent and independent.

2)
Coincident lines are lines that look exactly the same when graphed.
You can see this if you divide the second equation by 2.
8y + 2x = 4
Divide both sides by 2.
4y + x = 2

This is exactly like the first equation.

Your final answer is A) Coincident.

3)
We have coincident lines, again.
Coincident lines will have infinitely many solutions because any solution to one equation will also work in the second equation.

Your final answer is D) Infinitely many.

4)
We are dealing with coincident lines, again.
Both equations have to be simplified down to x + 3y = 5.

Obviously, we can see that the second equation is the first equation multiplied by 4. We can tell that because the first equation has x, and the second equation has 4x.

To find the remaining terms, multiply by 4.
x + 3y = 5

Multiply both sides by 4.
4x + 4(3y) = 4(5)
4x + 12y = 20

The missing values are, respectively, 12y and 20.

5)
Graph each line and use the information I have told you above to classify each system.
1) A) Consistent and independent.
2) B) Coincident.
3) C) Inconsistent.
4) C) Inconsistent.

Answer 2

Answer: 1) Since the lines cross, they have one solution, which means the answer would be consistent and independent.

Answer: C) Consistent and independent.

2) A coincident system would mean that the points lie on the same line, which is what is here, so that would be the answer.

Answer: A) Coincident.

3) These equations have infinitely many because they lie on the same line, and can have ANY solution. So...you could put any points and have a correct equation.

Answer: D) Infinitely many.

4) when x = 1, y = 3.
So, multiply both by 4.

3y * 4 = 12y
5*4 = 20

12y and 20 would be the answers

5)
Consistent independent.
Coincident.
Inconsistent.
Inconsistent.

This is because the inconsistent would have a parallel line, and coincident would be when they lie on the same line, and consistent independent would be if they have one solution.

Related Questions

Help me please its a easy qquestion im just dumb
Factor the polynomial below 20x^2-45
50 points decreased by 26% is points.
How to turn into mixed number
Which expression is equivalent to 64 − 9x2?(32)2 − (3x)2 (32)2 + (−3x)2 (8)2 − (3x)2 (8)2 + (−3x)2

Consider these three numbers expressed in scientific notation 2.4 x10^4 , 6.3 x10^5 , and 9.6 x10^7

Answers

i considered them, but if you wanted them evaluated, here you go
24,000
630,000
96,000,000

good job on increasing our team sales from 90 to 130 units per day.” wow i never thought that we could increase our sales by

Answers

The percentage increase in team sales is 44% and this can be determined by using the unitary method.

Given :

The sales increase from 90 units to 130 units.

The following steps can be used in order to determine the percentage increase in sales:

Step 1 - The unitary method can be used in order to determine the percentage increase in sales.

Step 2 - According to the given data, the team sales are 90 units which are 100%. After increasing the sales becomes 130 units.

Step 3 - So, let the percentage of 130 units be 'x'. So, the value of 'x' is:

$x = (130)/(90)* 100$

$x = 144\%$

Step 4 - So, the percentage increase in sales is:

${\rm Percentage \; Increase } = 144 - 100$

${\rm Percentage \; Increase } = 44\%$

The percentage increase in team sales is 44%.

For more information, refer to the link given below:

brainly.com/question/11897796

The sales was increased by 44.4%.

Step-by-step explanation:

Lets do this cumulative
90 of 10 % = 9 which is 99
90 of 10 % = 9 which is 108
90 of 10% = 9 which is 117
90 of 10% = 9 which is 126
90 of 4 % = 3.6 which is 129.6
90 of 0.044% = 0.0396 which is 129.99
This comes to nearly 44.44 to be closer there was an increase.
Always rule 1 approximation use 50% of 90 if it is above 130.
Down it to 40% of 90 see if the sales is lower than 130.
It should always start with 50,40,30....10 percents.
Alternative should be 10,1 or decimals.
Approximation using decimals rounding up becomes simple.

Give an example of two numbers that are both 6-digit numbers, but the greater number is determined by the hundreds place

Answers

The order of the numbers for a 6-digit number from left to right is as follows:
hundred thousands, ten thousands, thousands, hundreds, tens and then units

We want two numbers were the greater number is determined by its hundreds place, these two numbers can be:
165,827 and 165,229
The hundreds in the first is 8 while the hundreds in the second is 2. Therefore, the first number is larger.

Find the area of the shape shown below.

Answers

Answer:

936

Step-by-step explanation:

1 x 12 x 13 x 6= 936

Here is some evidence

Answer:36

Step-by-step explanation: L•w/2 = A for triangular

The bases of a trapezoid are 11 meters and 14 meters .Its height is 10 meters . What is the area of the trapezoid ??

Answers

Given:
Bases of trapezoid : 11 meters and 14 meters
height of trapezoid : 10 meters

Area of trapezoid = (sum of bases / 2) height
A = (11m + 14m)/2 * 10m
A = 25m / 2 * 10m
A = 12.5m * 10m
A = 125m²

Just multiply 14×10=140×11=280. The area of the trapezoid is 280 meters

How many 30 angles does it take to make a full turn

Answers

12. A full turn is 360 degrees. 360 divided by 30 is 12.

12 to make a full turn