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JulsSmile [24]
3 years ago
5

20 points! I need the answer ASAP! Thanks!

Mathematics
1 answer:
serious [3.7K]3 years ago
5 0

Answer: y=5/7x+2

Step-by-step explanation:

The y- intercept would be 2 since that is where the line goes through the y axis. Also if you use slope form you will see that the slope is 5/7.

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3x + 7y = 21 –3x – 7y = 42<br> Solve the system of equations?
likoan [24]

9514 1404 393

Answer:

  no solution

Step-by-step explanation:

The equations describe parallel lines. There are no values of x and y that will satisfy both equations.

In standard form, the two equations are ...

  3x +7y = 21

  3x +7y = -42 . . . . . with positive leading coefficient

If (x, y) values satisfy the first equation, they cannot satisfy the second equation, and vice versa.

8 0
3 years ago
Please Help me with this maths question
nikdorinn [45]

Step-by-step explanation:

formula to find volume of a cylinder => V= πr²h

(22/7×(3.5)²×12)cm³

462cm³.

now the total volume of plastic used is = 462×0.2 = 92.4cm³.

hope this helps you.

4 0
3 years ago
Solving systems by elimination with multiplication: 8x+7y=20 and 4x-4y=-20
borishaifa [10]
If you put 0 in the place of x or y, which every one you choose, it will cancel it or and you can just divide the number next to it by the answer (-20, 20). Take it one step at a time, don't try to do both at the same time.
3 0
3 years ago
Which of the following steps should be completed first when simplifying ?
valkas [14]
Answer: combine like terms
3 0
3 years ago
Read 2 more answers
The figure is made up of 2 hemispheres and a cylinder. What is the exact volume of this figure? 126π in.³ 378π in.³ 396π in.³ 64
bogdanovich [222]
The two domes or hemispheres simply have the area of a complete sphere with the same diameter.  So the total area is the area of a sphere and a cylinder...

as=(4p3^3)/3, ac=10p3^2

A= 36p+90p=126p in^3
7 0
3 years ago
Read 2 more answers
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