y+43°= 180°( straight angle)
=>y= 180°-43°
=>y=137°
Answer:

Step-by-step explanation:-
To find the midpoint, the equation we use is:-

x1 = 10
x2 = 5
y1 = 7
y2 = 4
Substituting the values in the equation, we get:-

Coordinates of the midpoint---> 
Just divide and then get the quotient and round :) use the calculator it helps but that’s the explanation
Answer:
0.08065
Step-by-step explanation:
Given that in a recent study,1 2006 randomly selected US adults (age 18 or older) were asked to give the number of people in the last six months with whom you discussed matters that are important to you.
If X is random variable then X has mean 2.2 and s = 1.4
n=2006
Std error of mean =
For 99% since sample size is large, t and z distn almost coincide.
Hence we can take 2.58 as critical value
Margin of error at 99% =
X+ 3y = 1 -----(first equation)
-2x+7 = -23 ---(second equation)
-2x = -23-7
x = 30/2
x = 15
Now, Substitute the value of x in first equation,
15 + 3y = 1
3y = 1 - 15
y = -14/3
In short, Final Answers are: x = 15 & y = -14/3
Hope this helps!