A doctor told his patient to drink 3 full cups and 1/2 of a cup of medicine over a week.
1 answer:
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Answer:
A, B and D are true statements.
Step-by-step explanation:
We are given a binomial expansion
Now we will check each option
Option A: The coefficients of and
both equal 1.
If we see first and last term of the expansion, This statement is true.
Option B: For any term in the expansion, a + b = n.
Let we take 3rd term of expansion
Here, a=n-2 and b=2
If we do a+b = n-2+2=n
a+b=n is true statement.
Option C: For any term x^ay^b in the expansion, a - b = n.
Let we take 3rd term of expansion
Here, a=n-2 and b=2
If we do a-b = n-2-2=n-4≠n
a-b=n is false statement.
Option D: The coefficients of x^ay^b and x^by^a are equal.
If we take second term from beginning and last of the expansion.
This statement true.
Answer:
The values of x and y is given by the equation .
Step-by-step explanation:
Given : Five whole numbers are written in order 4 6 x y 10 , the mean and median of the five numbers are the same.
To find : The values of x and y ?
Solution :
Observations 4, 6, x, y, 10.
Mean is summation of observation divided by number of observation.
i.e.
Median is middle term of observations.
Median of odd terms term
term
The mean and median of the five numbers are the same.
i.e.
The values of x and y is given by the equation .
Answer:
BC ≈ 14.5 cm
Step-by-step explanation:
Using the sine ratio in the right triangle
sin65° = =
=
( multiply both sides by 16 )
16 × sin65° = BC , then
BC ≈ 14.5 cm ( to the nearest tenth )