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Ratling [72]
3 years ago
5

This is a linear equation/ graph quiz ! please help , my teacher makes no sense to me!

Mathematics
2 answers:
vichka [17]3 years ago
7 0

Answer:my language arts teacher doesn’t make sense to me neithe!!!

Step-by-step explanation:

JulijaS [17]3 years ago
6 0

Answer:

(8,5)

Step-by-step explanation:

5x - 2y = 30

coordinates are (x,y) so you plug in 8 for x and solve for y

5(8) - 2y = 30

40 - 2y = 30

subtract 40 from both sides to isolate y

-2y = -10

divide both sides by -2 to isolate y

y = 5

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Oksana_A [137]

Answer:

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Step-by-step explanation:

5 0
3 years ago
Help me find the surface area ​
Brut [27]

Answer:

Step-by-step explanation:

area of triangular face = ½·3·4 = 6 cm²

area of 3 by 7 face = 3×7 = 21 cm²

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area of 4 by 7 face = 4×7 = 28 cm²

total surface area = 2×6 + 21 + 35 + 28 = 96 cm²

6 0
2 years ago
What is the solution to the system of equations 2x+y=2 and y= -2x-2?
finlep [7]

Answer:

NO SOLUTION

Step-by-step explanation:

Solve this system by substitution:

Replace y in the first equation with -2x - 2:

2x + (-2x - 2) = 2, or

2x - 2x - 2 = 2

0 = 4      This is not possible, so this system has NO SOLUTION.

5 0
3 years ago
25+ -8 equals I really need help
Nimfa-mama [501]

Answer:

17

Step-by-step explanation:

Saying 25+ -8 is basically saying 25-8, and since 25 is the bigger number and it's positive, you get positive 17

7 0
3 years ago
Read 2 more answers
Please help on question 12 or 13 as soon as possible
Anna007 [38]

Answer:

to know the summation of angles: (n-2)*180

here (n) represent numbers of sides

12)we have 5 sides (n=5)

(5-2)*180=540

x=540-(105+135+92+87)=121

13)we have 8 sides (n=8)

(8-2)*180=1080

x=1080-(116+158+141+124+136+132+129)=144

I hope it will help

3 0
2 years ago
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