Answer:
JKL=127°
BEF=63°
m 1=90°
CBY=66°
Step-by-step explanation:
JKL:
the two lines are parallel and cut by one line so the corresponding angles just be the same.
BEF:
(7x-14)=4x+19
add 14 to each side
7x=4x+33
subtract 4x from each side
3x=33
divide each side by 3
x=11
implement that into 4x+19
4(11)+19
44+19
63
m 1:
Since the congruent angles is 90 and 90 + m 1= 180° the m 1 has to be 90°
3x+9+6x=180 since they are corresponding angles on a parallel line and corresponding angles must equal 180° in total
9x+9=180
subtract 9
9x=171
divide each side by 9
x=19
3(19)+9
66°
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
Answer:

And we can use the normal standard distribution table and we got:

Step-by-step explanation:
For this case we know the following info given:
represent the population proportion
represent the sample size selected
We want to find the following proportion:

For this case we can use the normal approximation since we have the following conditions:
i) np = 622*0.14 = 87.08>10
ii) n(1-p) = 622*(1-0.14) =534.92>10
The distribution for the sample proportion would be given by:

The mean is given by:

And the deviation:

We can use the z score formula given by:

And replacing we got:

And we can use the normal standard distribution table and we got:

Answer:
x=7
Step-by-step explanation:
166=x+87+x+93
166=2x+87+93
166=2x+180
-180 -180
-14=2x
/2 /2
x=7
Had to answer it on notepad. Hope This Is Right.