Answer:
x = 2/3x + 5 1/2 = -10 = x = -93/4
Step-by-step explanation:
Answer:
Step-by-step explanation:
Step 1
Find the value of x
we know that
In an inscribed quadrilateral the opposites angles are supplementary
so
In this problem
substitute the values and solve for x
step 2
Find the measure of angle B
substitute the value of x
Answer: 246
Step-by-step explanation:
As per given description , we have
Population standard deviation:
Critical value for 95% confidence =
margin of error : E= 2
Formula to find the required sample size : -
Hence, the required minimum sample =246
3x+x+20 = 180
4x = 180-20
4x = 160
x = 40
×+20+3x+2x+38+C=360
40+20+3×40+2×40+38+C=360
40+20+120+80+38+C=360
298+C=360
C=360-298
C =62°
If you don't undersstand how i did it just ask me :)