I think it is 291,060 square kilometers, i might be wrong
Answer:
Ok so the first one is right and the second one is right for the first question
For the second Question your also right
Step-by-step explanation:
Question 3
12/7 is greater than 6/13 and it's asking what numbers would be incorrect meaning less than 6/13 (unmark 12/7)
1/10 is correct since 6/13 is greater than 3 / 65 (It's what you get when you multiple 1/10 with 6/13)
Unmark 4/3
Unmark 3
and 13/13 is just equal to 6/13 (leave unmarked)
Question 4
I don't know kiddo it's been a while
<u></u>
<span>3/8 is left is the correct answer if multiple choice
</span>
Answer:
27
Step-by-step explanation:
9 crew members complete a job in 3 months
Number of crew members is inversely proportion to construction time :
Let :
Crew members = m
Construction time = t
m α 1 /t
m = k/t
m = 9 ; t = 3
9 = k /3
k = 27
If t = 1 (one month)
m =?
m = k/t
m = 27 / 1
Hence;
m = 27 * 1
m = 27 workers
Answer: 40.9
Step-by-step explanation:
Given
angle given is ![23^{\circ}](https://tex.z-dn.net/?f=23%5E%7B%5Ccirc%7D)
![RC=16](https://tex.z-dn.net/?f=RC%3D16)
Using trigonometry
![\Rightarrow \sin 23^{\circ}=\dfrac{RC}{PC}\\\\\Rightarrow \sin 23^{\circ}=\dfrac{16}{X}\\\\\Rightarrow X=\dfrac{16}{\sin 23^{\circ}}\\\\\Rightarrow X=40.948\approx 40.9](https://tex.z-dn.net/?f=%5CRightarrow%20%5Csin%2023%5E%7B%5Ccirc%7D%3D%5Cdfrac%7BRC%7D%7BPC%7D%5C%5C%5C%5C%5CRightarrow%20%5Csin%2023%5E%7B%5Ccirc%7D%3D%5Cdfrac%7B16%7D%7BX%7D%5C%5C%5C%5C%5CRightarrow%20X%3D%5Cdfrac%7B16%7D%7B%5Csin%2023%5E%7B%5Ccirc%7D%7D%5C%5C%5C%5C%5CRightarrow%20X%3D40.948%5Capprox%2040.9)
Using cosine formula
![\Rightarrow \cos 23^{\circ}=\dfrac{PR}{X}\\\\\Rightarrow PR=40.9\times \cos 23^{\circ}\\\Rightarrow PR=37.69\approx 37.7](https://tex.z-dn.net/?f=%5CRightarrow%20%5Ccos%2023%5E%7B%5Ccirc%7D%3D%5Cdfrac%7BPR%7D%7BX%7D%5C%5C%5C%5C%5CRightarrow%20PR%3D40.9%5Ctimes%20%5Ccos%2023%5E%7B%5Ccirc%7D%5C%5C%5CRightarrow%20PR%3D37.69%5Capprox%2037.7)