The commutative property of addition is just switching the numbers around really! so yr answer would be 9+8=8+9
Answer:
$98.4.
Step-by-step explanation:
Since the university has decided that for the following year lecture costs will increase by 20%, workshop costs by 10%, and examination costs will stay the same, and that for level 2 the current hourly costs are 10, 24, and 60 respectively To determine how much the level 2 course cost in the following year, the following calculation must be performed:
10 x 1.2 + 24 x 1.1 + 60 = X
12 + 26.4 + 60 = X
98.4 = X
Thus, the level 2 course will cost $ 98.4 next year.
Answer: = 18
Espero que esto te ayude.
Answer:
Answer is 0.64
Step-by-step explanation:
Given that pdf of x is
Since total probability is 1 we can use this to find k.
![\int\limits^7_2 {k(x-2)} \, dx +\int\limits^12_7 {k(12-x)} \, dx \\=k\frac{(x-2)^2}{2} -k\frac{(12-x)^2}{2} \\=\frac{k}{2} [(7-2)^2-(2-2)^2-(12-12)^2+(7-12)^2]\\=\frac{k}{2}[25+25]=1\\k =\frac{1}{25}](https://tex.z-dn.net/?f=%5Cint%5Climits%5E7_2%20%7Bk%28x-2%29%7D%20%5C%2C%20dx%20%2B%5Cint%5Climits%5E12_7%20%7Bk%2812-x%29%7D%20%5C%2C%20dx%20%5C%5C%3Dk%5Cfrac%7B%28x-2%29%5E2%7D%7B2%7D%20-k%5Cfrac%7B%2812-x%29%5E2%7D%7B2%7D%20%5C%5C%3D%5Cfrac%7Bk%7D%7B2%7D%20%5B%287-2%29%5E2-%282-2%29%5E2-%2812-12%29%5E2%2B%287-12%29%5E2%5D%5C%5C%3D%5Cfrac%7Bk%7D%7B2%7D%5B25%2B25%5D%3D1%5C%5Ck%20%3D%5Cfrac%7B1%7D%7B25%7D)
the probability that the fire loss is between 5 and 9=
Answer:
ok
Step-by-step explanation:
