C is the answer to the problem
perimeter means add the side
(x+4) +( x+8)+(2x-3) =P
x+x+2x+4+8-3=P
4x-9 =P
Answer:
Eight students won 6, 7, or 8 gold medals.
Step-by-step explanation:
We see that the third bin is labelled 6 - 8. Since this is on the horizontal, or x, axis, this means that the students in this "bin" have won 6 - 8 medals, which is the same as saying winning 6, 7, or 8 medals.
Because this "bin" goes to 8, that means that there are 8 students who earned this many medals.
Thus, the answer is D.
Hope this helps!
Answer:
11 packages
Step-by-step explanation:
24/6=4
44/4=11
Answer: 0.038
Step-by-step explanation:
Given: Total games : n= 375
Number of games won by the team that was winning the game at the end of the third quarter. = 300
The proportion (p) of the team that was winning the game at the end of the third quarter: ![p=\dfrac{300}{375}=0.8](https://tex.z-dn.net/?f=p%3D%5Cdfrac%7B300%7D%7B375%7D%3D0.8)
Critical z-value for 90% confidence: z* = 1.645
Margin of error =![z^*\sqrt{\dfrac{(1-p)p}{n}}](https://tex.z-dn.net/?f=z%5E%2A%5Csqrt%7B%5Cdfrac%7B%281-p%29p%7D%7Bn%7D%7D)
The margin of error in a 90% confidence interval estimate of p ![=1.645\sqrt{\dfrac{0.2\times0.8}{300}}\\= 1.645\times\sqrt{0.00053333}\\\\=1.645\times0.0231\\\\=0.0379995\approx$$0.038](https://tex.z-dn.net/?f=%3D1.645%5Csqrt%7B%5Cdfrac%7B0.2%5Ctimes0.8%7D%7B300%7D%7D%5C%5C%3D%201.645%5Ctimes%5Csqrt%7B0.00053333%7D%5C%5C%5C%5C%3D1.645%5Ctimes0.0231%5C%5C%5C%5C%3D0.0379995%5Capprox%24%240.038)
Hence, the required margin of error = 0.038