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Sauron [17]
3 years ago
9

SOLVE THE SYSTEM OF EQUATIONS USING ELIMINATION.The equation is 4x+y=-5 and -2x+2y=6 (show work pls )

Mathematics
1 answer:
taurus [48]3 years ago
4 0

Answer:

y=1.4

x=-1.6

Step-by-step explanation:

Hi, to solve this system of equations we have to multiply the second equation by 2, and then subtract the first equation to the second one:

4x+y=-5  

-2x+2y=6

-4x+4y=12

+

4x+y=-5

__________

5y =7

y = 7/5 = 1.4

Replacing y=1.4 on any equation:

4x+1.4=-5

4x = -5-1.4

4x= -6.4

x=-6.4/4

x=-1.6

Feel free to ask for more if needed or if you did not understand something.

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39/7+7/2what is 39/7 + 7/2 ​
blondinia [14]

Answer:

127/14

Step-by-step explanation:

39/7 + 7/2 = 78/14 + 49/14

78/14 +49/14 = 127/14

6 0
3 years ago
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Which property of addition does 8 + 0 = 0
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This property of addition is the Identity Property. The identity property states that any number added to 0 will equal to the original number. 




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6 0
3 years ago
The diagram shows several planes, lines, and points. Vertical plane P intersects horizontal plane R at line f. Vertical plane T
Rudiy27

Please mark brainliest

Answer:

Line H has points on planes R, T, P

Step-by-step explanation:

I just took the test on Edgenuity 2020. Good luck

5 0
3 years ago
#
fiasKO [112]

4. The point Z is the orthocenter of the triangle.

5. The length of GZ is of 9 units.

6. The length of OT is of 9.6 units.

<h3>What is the orthocenter of a triangle?</h3>

The orthocenter of a triangle is the point of intersection of the three altitude lines of the triangle.

Hence, from the triangle given in the end of the answer, point Z is the orthocenter of the triangle.

For the midpoints connected through the orthocenter, the orthocenter is the midpoint of these segments, hence:

  • The length of segment GZ is obtained as follows: GZ = 0.5 GU = 9 units. -> As z is the midpoint of the segment.
  • The length of segment OT is obtained as follows: OT = 2ZT = 2 x 4.8 = 9.6 units.

<h3>Missing Information</h3>

The complete problem is given by the image at the end of the answer.

More can be learned about the orthocenter of a triangle at brainly.com/question/1597286

#SPJ1

8 0
1 year ago
Miguel sells insurance. He earns a 6% commission on each sale he makes. Miguel has a goal of earning $600 in commissions. Miguel
WARRIOR [948]

Answer:

$564

Step-by-step explanation:

6% of 600 is 36

So 600-36= $564

7 0
3 years ago
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