The answer is A, because the ocean floor is -5 or below the sea level,so that makes the sea level=0, and the summit is 5km because if the whole thing is 10 km above the ocean floor, so 10+(-5)=5km.
Answer:
a=0.5 in
b=1.14 in
c=3.74 in
Step-by-step explanation:
I think it is 97°. If not Sorry that I gave you the wrong answer but I'm pretty sure that's the answer.
Answer:

Step-by-step explanation:
we have : lines 2 x + 4 y = 0 and 2 x + y = 10
Let ,
2 x + 4 y = 0............. (1)
2 x + y = 10...............(2)
solve these equations for x and y
Now subtract (2) from (1) ,we get
3y=-10
⇒y = 
Put the value of y in (1) , we get
2x+4(
) = 0
⇒2x= 
⇒x=
∴ Point of intersection is
.
Hence,the x-coordinate of that point is
.
Not completely sure on the symbols, but I think it is 5 x ( 22 - 9 x 2 ) - 2 ( 3 x 2 x 4 ) x 7 = 136. It doesn't really match the answers, so my advice is that you use a calculator for this one, or as the person/teacher who gave you the problem how to solve it.