What is the solution to this matrix?

Mathematics

1 answer:

Ne4ueva [31]3 years ago

5 0

Step-by-step explanation:

b I believe it is b hope that helps

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Y=3x+2 and 3y-9x=-6 in a linear equations and identify their solucion

aleksandrvk [35]

Answer:

The system has no solution

Step-by-step explanation:

we have

$y=3x+2$ ----> equation A

$3y-9x=-6$

isolate the variable y

$3y=9x-6$

Divide by 3 both sides

$y=3x-2$ ----> equation B

Compare equation A and equation B

Their slopes are equal and their y-intercepts are different

Remember that

If two lines have the same slope, then the lines are parallel

In this problem we have two different parallel lines, so, the lines don't intercept

therefore

The system has no solution

4 0

3 years ago

4(2x+3) can you help me with this problem

Valentin [98]

Yes I can, MissSmartiez at your service ;)!

This calls for the distributive property. Distributive property, essentially, takes the outside value (in this case 4) and multiply it to the inside value(s) (in this case 2x and [+]3) Thus, it's basically 4 * 2x + 4 *3.

4 multiplied by 2x is 8x.
4 times 3 is equivalent to 12.

Therefore the solution is 8x + 12.

3 0

4 years ago

Read 2 more answers

If there are 30 kids in a class and eleven of them were girls , what is the probability that a student picked a random girl ?

Tamiku [17]

Answer: 11/30

Step-by-step explanation:

11 girls out of 30 kids. 11/30 cannot be simplified.

3 0

3 years ago

The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin

bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, $Z_{Critical}=1.645$ .

We also know that E=5% or E=0.05

Also, since, $\hat{p}$ is not given, we will assume that $\hat{p}$ =0.5. This is because, the formula that we use will have $\hat{p}(1-\hat{p})$ in the expression and that will be maximum only when $\hat{p}$ =0.5. (For any other value of $\hat{p}$ , we will get a value less than 0.25. For example if, $\hat{p}$ is 0.4, then $1-\hat{p}=0.6$ and thus, $\hat{p}(1-\hat{p})=0.24$ .).