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jenyasd209 [6]
3 years ago
13

Please help me with this problem​

Mathematics
1 answer:
eimsori [14]3 years ago
6 0

Find the equation of the first line using the two given points: (1,-1) (-1,-5)

Slope = change in Y over change in x:

Slope = (-5-(-1)) / (-1-(1) = -4/-2 = 2

Now find y intercept: y - y1 = m(x-x1) = y -(-1) = 2(x-1)

Simplify to get y = 2x-3

Now a perpendicular line has a opposite reciprocal slope.

The perpendicular line would be y = -1/2x - 3

You are told the y intercept is -4 units greater, so add -4 to -3 to get -7

The answer would be A. y = -1/2x-7

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What is the best estimate of 28 × 4,417?
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Answer:

132600

Step-by-step explanation:

I was always taught like this, and this should be the best estimate:

28 x 4417 --> 30 * 4420 --> 132600

Some other possible estimates with simpler values:

30 * 4400 --> 132000

30 * 4500 --> 135000

30 * 4000 --> 120000


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3 years ago
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Learn with an example
lana [24]

Based on the information provided, to feed the second cat it is necessary 1 1/2 extra cans or 1.5 cans.

<h3>How much extra food is needed to feed the second cat?</h3>

This difference can be found by substracting the total cans fed with only one cat to the total fed with two cats:

  • 3 1/2 cans - 2 cans = 1 1/2 cans, which can also be expressed as 1.5 cans.

Based on this, to have a second cat implies 1.5 extra cans.

Learn more about feed in: brainly.com/question/15585750

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6 0
2 years ago
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yanalaym [24]

Answer:

B

Step-by-step explanation:

it's the only equation that actually makes sense

5 0
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