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4 years ago

Please help me with this probability problem.

Mathematics

1 answer:

Airida [17]4 years ago

6 0

Answer:

0.278

Step-by-step explanation:

5 + 4 = 9

$\frac{5}{9}$ * $\frac{4}{8}$ = 0.2777...

Try to do the others on your own using the information I gave you.

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Plz!!!!!!!!!!!!!!!!!!help!!!!!!!!!!!!!!!!

kodGreya [7K]

With a reflection across the y-axis followed by a translation of one unit to the right and three units up, and a dialation centered at the origin with a scale factor of 2

6 0

3 years ago

N parallelogram LMNO, what are the values of x and y?

Liula [17]

In parallelogram, LMNO,

Because Opposite angles are equal:
Therefore, 2x = 3x -55
Or x= 55
Now, the sum of angles in a parallelogram is 360
2x+3x-55+5y+5y =360
5x +10y -55 = 360
5*55 -55 + 10y = 360
10y +220 = 360
10y = 140
y=14
Thus, x=55 and y= 14

8 0

3 years ago

16/21 divided by 4/9

leonid [27]

16/21 divided by 4/9 is equivalent to 16/21 x 9/4 = 144/84 which reduces to 12/7. So 12/7 is your answer.

7 0

3 years ago

Read 2 more answers

Find an equation of the line that goes through the points (10,34) and (-1,10)

kotykmax [81]

Answer:

Given points are ( 10 ,34 ) and ( -1 , 10)

Step-by-step explanation:

The equation of line is given by 

first we can find slope (m) 

= (y2 - y1) / ( x2 - x1)

= 34-10/10+1

 =24/11

Now the equation is

y - y1 = m ( x - x1) 

y - 10 = 24/11 ( x +11)

11 ( y - 10 ) = 24 (x + 11)

11y - 110 = 24x + 264

24x + 264 +110-11y =0

24x - 11y + 374 = 0

which is the required equation 

3 0

3 years ago

State the conclusion based on the results of the test. The standard deviationstandard deviation inin the pressure required to op

inysia [295]

Answer:

B. There is sufficient evidence that the mean of the pressure required to open a certain valve has changed.

Step-by-step explanation:

We make this conclusion based on these reasons:

We are told that the "null hypothesis was rejected" after the "manager feels that the pressure variability has changed., meaning the null hypothesis was the opposite of what occurred; that is to say, it is the alternate hypothesis that proved true instead.
"changes in the manufacturing process" form what can be called "sufficient evidence" that the mean of the pressure required to open the valve has changed, thereby going against the null hypothesis.

It is based on the above reasons that the null hypothesis was rejected.

4 0

3 years ago