I’m pretty sure it’s the 4th one
9..................................................................
Answer:
$136.50
Step-by-step explanation:
100 - 12 = 88% (How much percentage of money the student left)
88% = 120.12
1% = 120.12 ÷ 88 = 1.365
Before buying the book, the student had 100%
100% = 1.365 x 100 = 136.50
Answer:
132 cm^2
Step-by-step explanation:
7x4 is 28 for the top rectangle.
Bottom left triangle is bh/2 which here is 8x6/2 which is 24.
The same goes for the bottom right triangle.
Lastly the middle triangle is 7*8 which is 56.
Hence, 56+28+24+24=132!
Hope it helped!
Answer:
0.3573 = 35.7%
Step-by-step explanation:
We roll a pair of dice 10,000 times so the mean and standard deviation is,
μ = 10000/36 =277.7 σ = 
= (280 - 277.7)/16.4 = .14
= (300 - 277.7)/16.4 = 1.35
Probablity (range)
0.3573
Z(low)=0.14 0.555766357
Z(upper)=1.36 0.91304644
