Step-by-step explanation:
Margin of error = critical value × standard deviation
We aren't given the critical value or any information to calculate it, so we need to make some assumptions. Assuming the data set is large enough to be approximated as normal, and that the confidence level is 95%, then the critical value is 1.96.
ME = 1.96 × 9.5
ME = 18.62
You may choose to round 1.96 to 2, in which case the margin of error is:
ME = 2 × 9.5
ME = 19
Given data:
The angle of the rhomes = 124 degrees.
Subject: Calculate the value of Y.
We know the opposite angle of the rhombus are equal.
in triangle ABC,
sum of three angle = 180 degrees.
Angle DCA = angle CAB
Angle BCA = angle CAD,
Angle D = angle B,

Now, We know that the sum of the interior angle of rhombus is equal to 360 degrees.
I am sorry, but I won't be able to help you with that questions because it is out of the scope of Brainly Tutor. Perhaps you would like to post it on Brainly.in?
Answer:
The possible pairs of arrangement of cookies are (12,07) (14,06) (21,04) and (42,2).
Step-by-step explanation:
Given:
Daniel makes 84 cookies and we have to find how many cookies are there in each row and how many rows are there.
Basically we have to find the possible factors of 84.
⇒ Factors:
⇒
The possible pairs are.
⇒
or 
⇒
or 
⇒
or 
⇒
or 
So,
there can be 12 cookies in 07 rows or 07 cookies in 12 rows.
there can be 14 cookies in 06 rows or 06 cookies in 14 rows.
there can be 21 cookies in 04 rows or 04 cookies in 21 rows.
there can be 42 cookies in 02 rows or 02 cookies in 42 rows.
The possible pairs are (12,07) (14,06) (21,04) and (42,2) in which Daniel can arrange the cookies.