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svlad2 [7]
3 years ago
14

HELP 50 POINTS need this so my mom doesn't yell at me

Mathematics
2 answers:
Citrus2011 [14]3 years ago
8 0

Answer:

1. so (1,-10) passes both equations

2.  The dotted line is the line y > -x+3  and the solid line is y ≤ 2x -2

3.  The solid line is the line y≤ -x+2  and the other solid line is y ≤ -3x +2

Step-by-step explanation:

y≤x-5

y≤-x-4

Substitute the points in and see if they work

(1,10)

10 ≤1-5   10  ≤-4  False

10 ≤-1-4  10 ≤-5  False

so (1,10) Fails both equations

(-1,10)

10 ≤-1-5   10 ≤-6  False

10 ≤1-4  10 ≤-3  False

so (-1,10) Fails both equations

(10,1)

1 ≤10-5   1  ≤5  True

1 ≤-10-4  1 ≤-14  False

so (10,1) Fails one equations

(1,-10)

-10 ≤1-5   -10 ≤-4  True

-10 ≤-1-4  -10 ≤-5  True

so (1,-10) passes both equations

2.  The dotted line is the line y > -x+3  and the solid line is y ≤ 2x -2

The dotted line means less than or greater than.  It is shaded above so it is greater than.  The y intercept is 3.  The slope is down 1 to the right one (-1/1)  y> -x+3

The solid line means greater than or equal to   or less than or equal to.  Since it is shaded below it means less than or equal to.  The y intercept is -2.  The slope is up 2 to the right one (2/1)  y≥ 2x-2

3.  The solid line is the line y≤ -x+2  and the other solid line is y ≤ -3x +2

The solid line means greater than or equal to   or less than or equal to.  It is shaded below so it is less than or equal.  The y intercept is 2.  The slope is down 1 to the right one (-1/1) y≤ -x+2

The solid line means greater than or equal to   or less than or equal to.  Since it is shaded below it means less than or equal to.  The y intercept is 2.  The slope is down 3 to the right one (-3/1)  y ≤ -3x +2

Whitepunk [10]3 years ago
5 0

Answer:

Step-by-step explanation:

1. so (1,-10) passes both equations

2.  The dotted line is the line y > -x+3  and the solid line is y ≤ 2x -2

3.  The solid line is the line y≤ -x+2  and the other solid line is y ≤ -3x +2

Step-by-step explanation:

y≤x-5

y≤-x-4

Substitute the points in and see if they work

(1,10)

10 ≤1-5   10  ≤-4  False

10 ≤-1-4  10 ≤-5  False

so (1,10) Fails both equations

(-1,10)

10 ≤-1-5   10 ≤-6  False

10 ≤1-4  10 ≤-3  False

so (-1,10) Fails both equations

(10,1)

1 ≤10-5   1  ≤5  True

1 ≤-10-4  1 ≤-14  False

so (10,1) Fails one equations

(1,-10)

-10 ≤1-5   -10 ≤-4  True

-10 ≤-1-4  -10 ≤-5  True

so (1,-10) passes both equations

2.  The dotted line is the line y > -x+3  and the solid line is y ≤ 2x -2

The dotted line means less than or greater than.  It is shaded above so it is greater than.  The y intercept is 3.  The slope is down 1 to the right one (-1/1)  y> -x+3

The solid line means greater than or equal to   or less than or equal to.  Since it is shaded below it means less than or equal to.  The y intercept is -2.  The slope is up 2 to the right one (2/1)  y≥ 2x-2

3.  The solid line is the line y≤ -x+2  and the other solid line is y ≤ -3x +2

The solid line means greater than or equal to   or less than or equal to.  It is shaded below so it is less than or equal.  The y intercept is 2.  The slope is down 1 to the right one (-1/1) y≤ -x+2

The solid line means greater than or equal to   or less than or equal to.  Since it is shaded below it means less than or equal to.  The y intercept is 2.  The slope is down 3 to the right one (-3/1)  y ≤ -3x +2

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Answer: Option A, the square root of 40, is an irrational number.

Step-by-step explanation:

We are given 4 options:

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All but one are perfect squares. Let's find out which one is not a perfect square.

The sqrt of 49 is 7. 7 times 7 is equal to 49.

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What about the square root of 40?

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Step-by-step explanation:

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