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Damm [24]
3 years ago
8

Someone please help me ! I suck at plotting inequalities and when are you suppose to keep the circle open or close ?

Mathematics
2 answers:
wariber [46]3 years ago
8 0
When it has the line under the sign that means the dot is closed. For example that is closed because it x is greater than or equal to -1, so if it has a line under the > sign that means the dot is closed
gulaghasi [49]3 years ago
5 0

keep the circle open if it there is no equal sign underneath the greater than or less than, that is because if there is no equal sign, then that value is not included, so it is open. If there is, then the value is a part of the solution, so it is closed circle to represent that it is part of the line.

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"Which number can be inserted in the parentheses so the numbers are ordered from least to greatest?" -3,(),-1 1/8 A. -3 1/2 B. 0
-BARSIC- [3]

Answer:

Option C

Step-by-step explanation:

The first number is - 3, then we have a blank and the third number is - 1 1/8

In order for the numbers to be arranged from least to greatest, the number in the center should be greater than -3, and lesser than -1 1/8

Note that for negative numbers, the larger the constant, the smaller the number. i.e. -5 is smaller than -4.

So from the given options, the only number that is greater than -3 and lesser than -1 1/8 is - 2 1/4

So, option C gives us the correct answer to have the numbers ordered from least to greatest.

7 0
2 years ago
Bob ate 12 cookies over the past two days. Assume he ate the same amount of cookies each day. How many cookies did Jonathan eat
docker41 [41]

Answer:

Its 6 cookies per day

Step-by-step explanation:

12/2=6 6 cookies per day

7 0
2 years ago
Read 2 more answers
I WILL GIVE BRAINLY HELP ME PLSSS
Gnom [1K]

Answer:

I believe (D)

Step-by-step explanation:

-5x + 7 = -13

-7 -7

-5x = -20

-5/-5 -20÷-5

x=4

3 0
2 years ago
Read 2 more answers
MARK AS BRAINLIEST
timofeeve [1]

Answer:

x+20⩾50

Step-by-step explanation:

in inequality, the word at least means that is equal or more than. so that means that Allie might equal or more than 50 hours in the model but if you're to solve it, Allie will need 30 or more hours. and since she already has 20, add the 20.

3 0
3 years ago
Three even numbers sum up to 162. the smallest is half the largest and the middle number is 3/4 the largest. what are the three
Scrat [10]
Lets name the largest number as x 
smallest number is half the largest , therefore its x/2 = 0.5x
then middle number is 3/4 the largest , therefore its 3/4x = 0.75x
the sum of the three numbers are 162
the three numbers added are 
x + 0.5x + 0.75x = 162
2.25 x = 162
x = 72
the largest number is 72
then middle number 0.75 x = 0.75 x 72 = 54
smallest number is 0.5x = 0.5 x 72 = 36
answer is  -   36,54,72
3 0
3 years ago
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