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netineya [11]
3 years ago
5

How do I know if it’s closed or not? (Ignore the “Ben...”

Mathematics
2 answers:
N76 [4]3 years ago
5 0

Answer:

It is open if it is greater or less than >

It is closed if it is greater than or equal to  or    less than or equal to > (but with the line underneath it)

Step-by-step explanation:

pav-90 [236]3 years ago
4 0

Answer:

look at the point if it is closed it will look like a dot(10) if not it will look like an empty circle (11)

Step-by-step explanation:

x is greater than or equal to -2

x is less than -2

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HELPPP PLEASE <br> i need a fast reply<br> asking for a friend in need of desperate help :((((
weqwewe [10]

Answer:

y =14

11x = 11*3.5 =38.5

3x+2y = 11x = 38.5

Step-by-step explanation:

The perimeter of a triangle is the sum of all three sides

3x+2y + 11x+y = 91

Combine like terms

14x +3y = 91

The lines mean the sides are equal

3x+2y = 11x

Simplify

Subtract 3x from each side

3x-3x+2y = 11x-3x

2y = 8x

Divide by 2

2y/2 = 8x/2

y = 4x

Substitute 4x in the first equation every time you see y

14x +3y = 91

14x +3(4x) = 91

14x+12x=91

26x = 91

Divide by 26

26x/26 =91/26

x = 3.5

Now we can find y

y = 4x

y = 4(3.5)

y = 14

We know x and y we can find the length of each of the sides

y =14

11x = 11*3.5 =38.5

3x+2y = 11x = 38.5

8 0
3 years ago
Please Help!!
Mrrafil [7]
Harry can rake the leaves in the yard 8 hours faster than his little brother Jimmy can. 
<span>If they join to work together they can complete the job in 3 hours. </span>
<span>1/x + 1/(x - 8) = 1/3 </span>
<span>3(x - 8) + 3x = x(x - 8) </span>
<span>x^2 - 14x + 24 = 0 </span>
<span>(x - 12)(x - 2) = 0 </span>
<span>Solutions: </span>
<span>x = 2 </span>
<span>x = 12 </span>
<span>Jimmy can complete the job on his own in 12 hours.</span>
6 0
3 years ago
Solve for c of the right triangle
Ede4ka [16]
In order to solve this triangle we must use cosine law:
c^{2} = a^{2} + b^{2} - 2ab*cosC

Now let's plug in the values we are given:
c^{2} = 5^{2} + 8^{2} - 2(5)(8) * cos 67
c^{2} = 25 + 64 - 80*cos67
c =  \sqrt{80-cos67}

5 0
3 years ago
Read 2 more answers
Write an equation of the line in slope -intercept form ( due today!)
Sati [7]

Answer: The answer would be y=1/3x-3

4 0
3 years ago
Solve x square − 10 x + 35 by completing the square.
Doss [256]

Answer: X=0.28571428571

Step-by-step explanation:

-10x divide by 10 =x , -10 divide by 35=0.28571428571

7 0
3 years ago
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