<u>Answer</u>:
Therefore has one solution.
<u>explanation</u>:
Given equations:
6x + y = -7
-24x -7y = 25
Make y the subject:
6x + y = -7
y = -7 - 6x ..............equation 1
-24x -7y = 25
-7y = 25 + 24x
y = (25 + 24x)/-7 ..........equation 2
Solve them simultaneously:
(25 + 24x)/-7 = -7 - 6x
25 + 24x = -7 (-7 - 6x)
25 + 24x = 49 + 42x
42x - 24x = 25- 42
18x = -24
x = 
Then y is:
y = -7 - 6x
y = -7 - 6( )
y = 1
Has one separate value of x and y: ( , 1 ); so it has one solution.
Answer:
x=180-68=112
So A and B are not correct.
180-112-27=41
y=41
So, C.
Answer:
the last option hope this helps
Step-by-step explanation:
Answer: 52 degrees
Explanation:
For this problem, we must know that the complement of an angle is the measure of which will make a 90 degree sum.
So in this problem we simply solve the equation as follows:
38 + x = 90
x = 90 - 38
x = 52
Hence the complement of 38 is 52.
Cheers.
The deepest point of the lake is -922, so to get to the surface of the lake you would need to add 922 feet.
The deepest point of the lake is 11,542 feet above sea level.
To find the surface of the lake add 922 to 11,542.
11542 + 922 = 12,464 feet
