Answer:
0.2
Step-by-step explanation:
Given the data :
Day : Mon Tue Wed Thu Fri Sat Sun
# of sick days 22 11 16 17 21 28 25
The expected count of sick days taken on Saturday is obtained thus :
Expected count = (row total * column total) / overall total
Here, the table is just one way :
Hence, we use :
Observed value / total days
Hence,
Expected count on Saturday = sick days on Saturday / total sick days
Expected count on Saturday = 28 / (22+11+16+17+21+28+25)
Expected count on Saturday = 28 / 140
= 0.2
Answer:
(k ∘ p)(x) = 2x^2 − 12x + 13
Step-by-step explanation:
k(x) = 2x^2 − 5 and p(x) = x − 3,
(k ∘ p)(x).= k(p(x))
This means put the function p(x) in for x in the function k(x)
(k ∘ p)(x) = 2(p(x)^2) -5
= 2(x-3)^2 -5
= 2 (x-3)(x-3) -5
FOIL
=2(x^2 -3x -3x+9) -5
=2 (x^2 -6x+9) -5
= 2x^2 -12x +18 -5
Combine like terms
= 2x^2 -12x +13
Answer: 9
Step-by-step explanation:
Given
The function is
To make it a perfect square, compare it with
Here,
So, c must be square of b i.e. 9
Therefore, value of c is 9.
3.9999 cups of sugar but we can round to 4
The ratio of bananas to sugar is 3:1.5
We’re looking for the cups of sugar is bananas is 8 so 8:s
3 : 1.5
Is equal to
8 : s
So 8/3 should be equal to s/1.5
8/3 is 2.6666 and 1.5 times 2.6666 is 3.9999