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ziro4ka [17]
3 years ago
6

Please answer correctly !!!! Will mark brainliest !!!!!!!!!!!!!!

Mathematics
1 answer:
nevsk [136]3 years ago
4 0

Answer:

x = -5/3 and y = -1

Step-by-step explanation:

write it as a system and simplify

-4 for the first equation (in the photo but when putting it into a system of equations it would be 2nd)

So it's

-3x-2y=7

-3x+2y=3

then it's -6x=10

then divide oth sides by -6 to get x then plug that into whatever equation and solve for y.

i hope this is right and helps

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what are the four different ways to solve a quadratic equation? When would you prefer to use each method?
Simora [160]

Answer:

1. Factorization method

2. Formula method

3. Completing the square method

4. Graphical method

Step-by-step explanation:

There are four methods of solving quadratic equation:

1. Factorization method

2. Formula method

3. Completing the square method

4. Graphical method

1. Factorization method: Use factorization method when the quadratic equation can easily be factorize.

Example: x^2 - 4x - 12 = 0

(x-2)(x+6)

2. Formula method: This can be used when factoring the quadratic equation looks difficult or you are given instruction to use formula method

3. Completing the square method: Use completing the square method when you are instructed to do so.

4. Graphical method: This method is used when instructed to find x intercept.

5 0
4 years ago
Read 2 more answers
Based on the data from three annual checkups, Jon’s mean height is 62 in. At the first two checkups, Jon’s height was 58 in. and
Vadim26 [7]

Answer:

  b.  67

Step-by-step explanation:

In order for the average to be 62, the total of differences from 62 must be zero. The two given numbers have differences of -4 and -1, for a total of -5. In order for the total of differences to be zero, the third number must have a difference from 62 of +5. It must be 62+5 = 67.

Jon's height at his third checkup was 67 inches.

5 0
3 years ago
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When a function is evaluated with a zero, what does it represent?
Gre4nikov [31]
We know that
the points where the graph of the function crosses the y-axis is when <span>a function is evaluated with a zero, these points represent the y-intercept of the function
</span>
therefore
the answer is
Represent the y-intercept of the function
4 0
3 years ago
What is x?<br> 8(2x − 7) = 8
adelina 88 [10]

Answer:

8(2x-7)=8

multiply

16x-56=8

collect like terms

16x=8+56

16x=64

divide both sides by 16

x=4

6 0
3 years ago
Read 2 more answers
Can someone check these and tell me which ones are in the wrong column, thanks
Anna71 [15]

Answer:

∠2 and ∠5 should not be Alternate exterior angles. ∠2 and ∠11 can be Alternate exterior angles if that is an option. The rest is correct. As for consecutive interior angles, you have (∠3 and ∠9), (∠4 and ∠10), (∠7 and ∠13) and (∠8 and ∠14).

Step-by-step explanation:

Alternate exterior angles are basically like the angles that are the combination of a vertically opposite angle and a corresponding angle. Since the vertical lines are not parallel, ∠2 and ∠5 cannot be Alternate exterior angles.

Consecutive interior angles are any pair of angles that are within a pair of parallel lines and add up to 180°.

7 0
3 years ago
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