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Julli [10]
2 years ago
15

PLEASE HELP!! i'm struggling sm :/

Mathematics
1 answer:
Bogdan [553]2 years ago
5 0

Answer:

Check boxes 3, 4, 6, and 8.

Step-by-step explanation:

We have the equation:

y=-3x+2

And we want to select all equations that are perpendicular to the above equation.

Remember that perpendicular lines have slopes who are negative reciprocals of each other.

Therefore, the slope of our equations must be the negative reciprocal of -3.

The negative reciprocal of -3 is 1/3. We flipped -3 to -1/3, and then multiplied by a negative.

Therefore, any equation with a slope of 1/3 is perpendicular to our original line.

Therefore, we will check boxes 3, 4, 6, and 8.

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Please help me with all of them
kaheart [24]

Answer:

Question 6 is 1/6

Question 5 is 5/9

Question 7 is 1/15

Question 8 is 3/20

Question 4 is 1/30

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Step-by-step explanation:

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Match the equivalent expressions 3x+5x+8, 4x+4x, 4x+4x+4x+4x, -7x + 4 + 3x, 8x, 16x, -4x + 4 and 8x + 8
FrozenT [24]

Answer:

Combine like terms; 3x + 5x= 8x

Since you don't have any like terms for +8, it's going to remain the same and not change.

Answer : 3x + 5x + 8 = 8x + 8

Again with combining like terms, 4x + 4x = 8x  

Answer: 4x + 4x = 8x

The third expression is going to be very similar to the last problem. 4x + 4x + 4x + 4x. We're going to add the terms together. 4+4+4+4 is equal to 16. Bring the x down and you get...

Answer: 16x

Lastly, we have -7x + 4 + 3x. Do the exact same thing we did to the other problems, combining like terms, shocking, I know. -7x + 3x= -4 and since there's no other like terms for +4, it stays the same. Therefore

Answer: -7x + 4 + 3x = -4 + 4

I hope this helps, mark as brainliest, please? :)

4 0
2 years ago
Help meeeeeeeeeeeeee
makvit [3.9K]

Answer:

the family free skate

Step-by-step explanation:

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tiny-mole [99]

Answer:

T = -7 + 3t .

Step-by-step explanation:

T = -7 + 3t   where T = the temperature and t = the times in hours.

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