Answer:
Percentage of gold bangles is 66.6 and of silver bangles it is 33.3
Step-by-step explanation:
Given:
Number of gold bangles Mala has = 
Number of silver bangles she has = 
Total number of bangles = 
= 
We have to find the percentage of each type of bangles.
So,
Percentage of bangles = 
- Percentage of gold bangles.
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
- Percentage of silver bangles.
⇒ 
⇒ 
Percentage of gold bangles, Mala has = 66.6 and of silver bangles it is = 33.3
A set of data has a normal distribution with a mean of 5.1 and a standard deviation of 0.9. Find the percent of data between 4.2 and 5.1.
Answer: The correct option is B) about 34%
Proof:
We have to find 
To find , we need to use z score formula:
When x = 4.2, we have:
When x = 5.1, we have:
Therefore, we have to find 
Using the standard normal table, we have:
= 
or 34.13%
= 34% approximately
Therefore, the percent of data between 4.2 and 5.1 is about 34%
Answer:
It is proved
Step-by-step explanation:
A curve immersed in the three-dimensional sphere is said to be a Bertrand curve if there exists another curve and a one-to-one correspondence between and such that both curves have common principal normal geodesics at corresponding points.
See attachment for the step by step solution of the given problem.
If my math is right it should be B)
<span>The identity element when applied does not change the other elements hence in multiplication 1x7=7 and 1x5=5 the elements 5 and 7 do not change for addition its 0 such as 0+10=10.
</span><span>Identity for multiplication is 1, for addition its 0</span>
