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Ghella [55]
4 years ago
13

Graphing inequalities k < -3​

Mathematics
1 answer:
NikAS [45]4 years ago
7 0

Step-by-step explanation: So when graphing this problem, we start at -3 on our number line with an open dot because <em>k</em> is less than but not equal to -3. I have shown this in the image attached below.

We then draw an arrow going to the left to represent all number less than -3.

Finally, we put our answer in set notation which is shown below.

{K: k < -3}

All this means is that if we take any number less than -3, this will be a solution for the inequality <em>k < -3</em>.

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Need help on this please answers these questions
Alika [10]
1. 25% if 1/4, so we want to find 1/4 of 176. Best way to get the result is just divide 176 by 4, so 176:4=44 - its the answer.

2. To get the answer we can use proportion
100% -----------20
90% ---------- x
crossmultiply now
100x=90*20
100x=1800     /:100        divide both sides by 100
x=18 - its the answer

3. Similar problem
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4 0
4 years ago
Read 2 more answers
What is the equation of the line
olga2289 [7]

Answer:

It's the first choice y = (-5/2)x - 1.

Step-by-step explanation:

First find the slope of the line  5x + 2y = 12 by converting to slope-intercept form.

5x + 2y = 12

2y = -5x + 12

y = (-5/2)x + 6   so the slope is (-5/2).

The line we require had also a slope of -5/2 because it is parallel to the first line and it also passes through the point (-2, 4). So:

y - 4 = (-5/2)(x - -2)      (the point-slope form)

y - 4 = (-5/2)(x + 2)

y = (-5/2)x - 5 + 4

y = (-5/2)x - 1  (answer)

7 0
3 years ago
(Factorize): x^2 + 4x + 4 - 9y^2<br>​
aalyn [17]

Answer:

x²^2 + 4x + 4 - 9y²=(x+2-3y) (x+2-3y)

Step-by-step explanation:

hello :

x²+4x+4 = x²+2(2x)+2²=(x+2)²  use identity : (a+b)² = a²+2ab+b²

( x² + 4x + 4) - 9y² = (x+2)²-(3y)²  = (x+2-3y) (x+2-3y)  use identity :

a²-b² =(a-b)(a+b)

3 0
3 years ago
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