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3 years ago

Solve the system by the elimination method.

Mathematics

2 answers:

joja [24]3 years ago

8 0

Answer: B

Step-by-step explanation:

YOU MINUS 4 -4 WHICH IS -8 SO ITS B

LekaFEV [45]3 years ago

5 0

Answer:

B. 4x = -8

Step-by-step explanation:

We are given the system of equations,

2x + y - 4 = 0

2x - y - 4 = 0.

It is required to use the elimination method i.e. we remove the variable y from both the equations by applying some operation on them.

Now, on adding the equations, we get that y can be easily removed.

So, we are left with 4x - 8 = 0 i.e. 4x = -8.

Hence, by using the elimination method, if y is removed we get option B is correct.

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3 years ago

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2 years ago

Cindy has 6 identical pink candies and 8 identical green candies. Find the number of ways that Cindy can line up her candies in

Daniel [21]

Answer:

175 ways

Step-by-step explanation:

Form a partition into 2 or 3 parts and the number of ways.

Pink candies

[1,5](2) , [2,4](2) , [3,3](1) , [1,4](3), [1,2,3](6) , [2,2,2](1)

Green candies

[1,7](2) , [2,6](2) , [3,5](2) , [4,4](1) , [1,1,6](3) , [1,2,5](6) , [1,3,4](6) , ,[2,2,4](3) , [2,3,3](3)

Number of ways will be:

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3 years ago

Question 7 of 7 (1 point) Question Attempt 3 of 3

Neporo4naja [7]

Answer:

To divide, use / instead of \.

Examples: 1+2, 1/3+1/4, 2^3 * 2^2

(x+1)(x+2) (Simplify Example), 2x^2+2y x=5, y=3 (Evaluate Example)

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Step-by-step explanation:

example

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2 years ago