By definition we have that the average rate of change of the function is given by:

Substituting values we have:

Rewriting we have:
Answer:
If x represents time, the average rate of change of the function f(x) in the first two seconds is 25.
Answer:
0.9375 = 93.75% probability that at least one of the four children is a girl.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
We have the following sample space
In which b means boy, g means girl
b - b - b - b
b - b - b - g
b - b - g - b
b - b - g - g
b - g - b - b
b - g - b - g
b - g - g - b
b - g - g - g
g - b - b - b
g - b - b - g
g - b - g - b
g - b - g - g
g - g - b - b
g - g - b - g
g - g - g - b
g - g - g - g
Total outcomes
There are 16 total outcomes(size of the sample space)
Desired outcomes
Of these outcomes, only 1(b - b - b - b) there is not a girl.
So the number of desired outcomes is 15.
Probability:

0.9375 = 93.75% probability that at least one of the four children is a girl.
The slope would be 3/4 because 5 - 2 is 3 and -1 - (-5) is 4. Hope this helps!
Answer:
I don't know. I need the whole question to answer.
Step-by-step explanation:
Sorry
Answer:
C. 43.11°
Step-by-step explanation:
The formula to use in finding m<BCD = ½ the difference of the intercepted arcs AE and BD
Thus:
m<BCD = ½(AE - BD)
m<BCD = ½(112.54 - 26.32)
m<BCD = ½(86.22)
m<BCD = 43.11°