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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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A group of friends wants to go to the amusement park. They have no more than $165
Oksi-84 [34.3K]

Answer:

17.75x + 5.25 \leq 165

x \leq 9

Step-by-step explanation:

The total cost can be represented by 17.75x + 5.25, where x is the number of people.

They can only spend a maximum of $165, so a less than or equal sign has to be used.

The inequality will be 17.75x + 5.25 \leq 165

Now, solve for x:

17.75x + 5.25 \leq 165

17.75x \leq 159.75

x \leq 9

So, x \leq 9 is the answer, meaning 9 people or less can go to the amusement park.

3 0
2 years ago
Find the solution to the equation below.<br> 2x^2+3x-20=0
mariarad [96]

Answer:

  x = -4, 5/2

Step-by-step explanation:

A quadratic can be solved may ways, including graphing, factoring, and the quadratic formula. You can also check possible answers by making use of the relationships between solutions and the coefficients.

__

A graph is attached. It shows the solutions to be -4 and 5/2.

__

When factored, the equation becomes ...

  (2x -5)(x +4) = 0 . . . . . has solutions x=-4, x=5/2 (these make the factors zero)

__

Using the quadratic formula, the solutions of ax^2 +bx +c = 0 are found from ...

  x = (-b±√(b²-4ac))/(2a)

  x = (-3±√(3²-4(2)(-20))/(2(2)) = (-3±√169)/4 = {-16, +10}/4

  x = {-4, 5/2}

__

For ax^2 +bx +c = 0, the solutions must satisfy ...

  product of solutions is c/a = -20/2 = -10

Only the first and last choices have this product.

  sum of solutions is -b/a = -3/2

Only the first choice (-4, 5/2) has this sum.

8 0
3 years ago
Please help! I’m on a timer :/
weqwewe [10]

If you want to find out how Addision paid each month, you have to have 36, then divide 36 by 12, and the answer will give you 3. So Addison paid $3 every month.

Hope this Helped

Nate

4 0
3 years ago
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Simplify the sum (complex fraction)
andrey2020 [161]
I got 2d^4-2d^2-5/d^2

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3 years ago
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The game of european roulette involves spinning a wheel with 37 slots: 18 red, 18 black, and 1 green. a ball is spun onto the wh
Dafna11 [192]
R u supposed to multiply this or divide
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3 years ago
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