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Drupady [299]
4 years ago
11

Solve the system by the substitution method.miny=-3X-63x-4y=9​

Mathematics
1 answer:
forsale [732]4 years ago
4 0
The work is attached but you just replace the y with what it is equal to which is -3x-6 in the equation

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A triangle has sides with lengths of 2x - 7 , 5x - 3, and 2x - 2. What is the Length of the triangle
mestny [16]
From my math it should be 12
7 0
3 years ago
Evaluate.<br> 18.65 -52/11=
professor190 [17]
The answer is about 13.9927.

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18.65-4.7272=13.9927.
6 0
4 years ago
Please help me out, thank you
babymother [125]

Answer:

A. Not a function

B. function

C. function

D. not a function

Step-by-step explanation:

A is not a  function because it has more than one of the same input ( x value)

B is a function because it does NOT have more than one of the same input (x value)

C is a function because it does NOT have more than one of the same input (x value)

D is not a  function because it has more than one of the same input ( x value)

Hope this helps.

6 0
3 years ago
When can you add or subtract equations in a system to solve the system? when do you have to multiply first? Justify your answers
victus00 [196]
You must always use the order of operations also known as PEMDAS meaning multiplication and division come before adding and subtracting for example when solving 2+2÷2 if not follwing PEMDAS it is 2 When you do it the correct way using PEMDAS it will be 3
5 0
3 years ago
Marika is training for a track race She starts by sprinting 100 yards . She gradually increases her distance , adding 4 yards a
wel
For this case, you must use the given expression, taking into account that:
 n = number of days.
 We have then that for day 21, n = 21.
 Substituting we have:
 a21 = 100 + (21-1) * 4
 a21 = 180
 Answer: 
 she sprints 180 yards on day 21
7 0
3 years ago
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