X+y+z = 132
x = 7+z
y = 3z

(7+z)+3z+z = 132
5z = 132-7
z = 125/5

z = 25 <=====

x = 7+z
x = 7 + 25
x = 39 <=====

y = 3z
y = 3 × 25
y = 75 <=====

hope it helps :)

8 0

3 years ago

I have to draw the graph this time so if someone can show me the graph what it would look like on a piece of paper or draw it fo

sweet-ann [11.9K]

Answer:

Hope this helps! :D

5 0

2 years ago

Testing: H 0 : μ ≥ 15.6 H 1 : μ < 15.6 Your sample consists of 46 values, with a sample mean of 13.4. Suppose the population

guajiro [1.7K]

Answer:

The value of the test statistic is <em>z</em> = 3.34.

Step-by-step explanation:

The information provided is:

$\bar x=13.4\\\sigma = 4.47\\n=46$

The test statistic is:

$Z=\frac{\mu-\bar x}{\sigma/\sqrt{n}}$

$=\frac{15.6-13.4}{4.47/\sqrt{46}}\\\\=3.33806\\\\\approx 3.34$

Thus, the value of the test statistic is <em>z</em> = 3.34.

5 0

2 years ago

HELP NEEDED PLEASE!!!! This math question confuses me. I thought the line didn't pass through any other point but I cant figure

Vanyuwa [196]

Answer:

Step-by-step explanation:

So wiggly, remember that slope is change in y/change in x, or in simpler terms, y/x. Thinking of this, y/x must simplyfy to -3. Or, you can think of it as -3/1.

So know that we have rewrote this as a slope of -3/1, lets use it. Where do we start? Well, we must start at point A, which is at 2 x and 7 y.

Now, going to the RIGHT(+1x) and going DOWN(-3y) we will go from 2x and 7y to 3x and 4y.

Are we on a point yet? Nope, lets do this again.

Now going to RIGHT again(+1x) and going DOWN again(-3y) we will go from 13x and 4y to 4x and 1y.

Are we on a point yet? Still no, lets try this one more time.

Now going to RIGHT again(+1x) and going DOWN again(-3y) we will go from 4x and 1y to 5x and -2y.

Are we on a point? YUP. We cna see that point B is at 5x and -2y.

Hope you get it right ;)

4 0

2 years ago