The cuic equation is -1 and 2i
Answer:
210 m²
Step-by-step explanation:
The area of a rhombus is d₁ * d₂ * 0.5. In other words, the area is its diagonals multiplied together and divided by 2.
Substitute the measures of the diagonal given.
35 * 12 * 0.5 = 210
The area is 210 m²
I hope this helps! Feel free to ask any questions!
Why is (D₁ + D₂)/2 incorrect?
This is a really helpful link:
http://mathandmultimedia.com/2015/03/04/why-the-area-of-a-rhombus-half-the-product-of-its-diagonals/
https://byjus.com/maths/area-of-rhombus/
1 and 18
2 and 9
3 and 6 or of you want the set
1,2,3,6,9,18
Answer: (0.1658, 0.2742)
Step-by-step explanation:
Formula to find the confidence interval for population proportion is given by :-

, where n= sample size
z*= Critical value
= sample proportion.
As per given , we have
Significance level : 
According to z-table, Critical value for 99% confidence interval : z*=2.576
Let p be the proportion of people in the country that have red hair.
n= 388

Now, required confidence interval for proportion of people in the country that have red hair will be :-




The 99% confidence interval for the proportion of people in the country that have red hair= (0.1658, 0.2742)