2 years ago

Which question is an example of a statistical question?

Mathematics

1 answer:

Hitman42 [59]2 years ago

4 0

I think the correct answer is c

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Find a and b to make the following matrices equal.

podryga [215]

We need the following to be true
a+2b = -a
a+4 = 2a - 3b

Let's look at the first equation.
a + 2b = -a
Subtract both sides by a
2b = -2a
b = -a

Substitute b= -a into the second equation
a+4 = 2a + 3a
a + 4 = 5a
4a = 4
a = 1

Just take the negative of that and you get the value of b.
b = -1

Your solution is a=1 and b = -1.

Have an awesome day! :)

4 0

3 years ago

Read 2 more answers

Helpppp I have 5 minutes left

dimaraw [331]

Answer:

Which of the following is a common sign that a chemical change has occurred?

Step-by-step explanation:

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