Answer: 12650
Step-by-step explanation:
It can be done in C25 4 = 25!/(25-4)!/4!= 25!/21!/(2*3*4)=
=22*23*24*25/24=22*23*25= 12650 variants
Answer: first option
Step-by-step explanation:
The formula for calculate the surface area of a cone is the shown below:
Where: s is the slant height and r is the radius.
As you can see in the figure the slant height and the radius are:
s=18 cm and r=6 cm
Therefore when you substitute the values shown above into the formula, you obtain that the result is:
cm²
A=4
The work behind it
-11a+33= -11
-33 -33
-11a=-44
Divide both sides by -11
-44/-11=a
A=4
Answer:
Concluding that people should take vitamin supplement each day when they don't help.
Step-by-step explanation:
We are given the following in the question:
Hypothesis:
Taking a vitamin supplement each day has significant health benefits and does not have any harmful side effects.
Null hypothesis:
Taking a vitamin supplement each day does not have have significant health benefits.
Alternate hypothesis:
Taking a vitamin supplement each day have have significant health benefits.
Type I error:
- It the error of rejecting the a true null hypothesis.
So error I for this situation would be concluding that people should take vitamin supplement each day when they don't help.
Answer:
75+75×15/100=75+11.25=86.25$
