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aliya0001 [1]
3 years ago
11

Algebra II Question - Tell whether the ordered pair is a solution of the system, why or why not?

Mathematics
1 answer:
Helen [10]3 years ago
3 0

Answer:

Yes

Step-by-step explanation:

If you graph (2,1) it will be in the gray area. Therefore, if the point is inside the gray, then the answer is yes.

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1 +1+0+0+1 try to find the answer for this
Nesterboy [21]

Answer:

3

Step-by-step explanation:

5 0
3 years ago
Explain why the system has the answer given. Solve each system by elimination to prove your answer.
andrey2020 [161]

Answer:

<em>Proved below</em>

Step-by-step explanation:

<u>System of Equations</u>

There are several ways to solve a system of linear equations. One of the most-used is the method of elimination which consists in adding two or more equations to eliminate one or more variables.

The system shown in the question has evidently no solutions because we have the same variables related in the exact same way in the left side of both equations and a different number as a result of those operations.

To prove the statement, let's multiply the first equation by -1

-x-2y=-8\\x+2y=20

Adding both equations:

0=12

This false result comes from the fact that we tried to solve a system with no solutions. The only way we could have solved it is that both right sides had been equal

4 0
3 years ago
A force of 30 N is executed to raise a rock weighing 90 N. What is the actual mechanical advantage?
Phantasy [73]

Answer:

Actual mechanical advantage and ideal mechanical advantage are not equal. true ... A farmer dragging rocks from a field using a sled is an example of . 0.25. A box weighing 8 newtons requires a force of 2 newtons to push it along the floor. ... A force of 30 N is executed to raise a rock weighing 90 N. The actual ...

Step-by-step explanation:

4 0
4 years ago
y=x^2-8x+6 complete the square to determine the vertex and maximum or minimum value. Determine the number of x-intercepts.
Irina18 [472]

Answer:

Below in bold.

Step-by-step explanation:

y = x^2-8x+6

y = (x - 4)^2 - 16 + 6

y = (x - 4)^2 - 10

So the vertex is at (4, -10)

The coefficient of x^2 of this function is 1 ( positive) so there will be  a minimum value.

Minimum value = -10.

x-intercepts:

(x - 4)^2 - 10 = 0

(x - 4)^2   =   10

x -  4 =  +/- √10

x =  4 +/- √10

- therefore there are 2 x-intercepts.

6 0
2 years ago
Find each percent decrease of 80 to 64
Anastasy [175]
80-64=24
24 is 30% of 80 so a decrease of 30%
4 0
3 years ago
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