Answer:
Height= 8341.6 feet
Step-by-step explanation:
A surveyor determined the height of the new summit by measuring the angle of elevation to the top to be 37°46'. She then moved 1000 feet closer to the volcano and measured the angle of elevation to be 40°30'.
40°30'= 40.5°
37°46'= 37.767°
b = 180-40.5
b= 139.5°
a= 180-139.5-37.767
a= 2.733°
Using sine method
1000/Sina= y/sinB
1000/sin 2.733= y/sin 139.5
(1000*sin 139.5)/sin 2.733= y
(1000*0.6494)/0.04768= y
13619.96= y
Y= 13620 feet
Height/sin 37.767= 13620
Height=13620*sin37.767
Height= 8341.59
Height= 8341.6 feet
Answer:
<h3>
The value of x is - 1 , - 6.25</h3>
Step-by-step explanation:
Given linear equation as :
3 - 2 x = - 5
<u>Rearranging the equation</u>
3 = 2 x - 5
<u>Taking square both side</u>
= (2 x - 5)²
Or, 9 x = 4 x² - 20 x + 25 [ from (a + b)² = a² + 2ab + b² ]
Or, 4 x² - 20 x - 9 x + 25 = 0
Or, 4 x² - 29 x + 25 = 0
The equation is in the form of quadratic equation i.e a x² + b x + c = 0
So, x =
Or, x =
Or, x =
Or, x =
Or, x = ,
Or, x = - 1 , - 6.25
So, The value s of x = - 1 , - 6.25
Hence, The value of x is - 1 , - 6.25 Answer
Answer:
Can you please send another picture your picture isn't to clear not the question
Answer:
Step-by-step explanation: He goes up 3 floors and he is currently on the fith one so he is now on the 8th floor
8+2 because he still has to go down to floors to get to the underground floor
He has to go down 10 floors