Multiply the first equation by two to get 2x + 2y = 4.
Subtract the second equation from the first equation to get -3y = -12
y = 4.
Plug y back in to get x = -2.
Answer: 67.4
Step-by-step explanation:
39 divided by 0.579= 67.35751295
67.35751295 rounded to the nearest tenth= 67.4
Please refer the attached figure for better understanding of the solution
Here we are given that the angle of depression is 40°
And the height of the boat from the water is 25.17 ft
we need to find the length of the rope used which we can take as x
We can see that sin is the ratio that corresponds to the opposite side and the hypotenuse sides of the triangle formed
so we have
sin 40° =
Hence the length of the rope needed is 39.16 ft
Answer:
A
Step-by-step explanation:
Equation of the dotted line:
Slope: (-2-1)/(-2-0) = -3/-2 = 3/2
y = (3/2)x + 1
Region lies below the line, and the line is dotted:
y < (3/2)x + 1
Your goal is to have x by itself
Send st to other side
rx= r+st
Divide by r so x stays alone
X=(r+st)/r
Which is also equal to
X=r/r+st/r
X= 1+st/r