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Phoenix [80]
3 years ago
11

Given system 2x-4=5 5x+4y=2 Solve for x and y and SHOW ALL OF YOUR WORK

Mathematics
1 answer:
Georgia [21]3 years ago
5 0
I'm solving your system by substitution.
2x-4=5, 5x+4y =2
Step# 1: solve for x
2x - 4+ 4= 5 + 4( add +4 to both sides)
2x = 9
x = 9/2
Step# 2: solve for y

5(9/2) + 4y = 2
4y + 45/2 = 2 
4y 45
y = 45/4 = 11.25
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9514 1404 393

Answer:

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Step-by-step explanation:

The side given is opposite the given angle. We want to find both the hypotenuse and the adjacent side in the right triangle that models the geometry.

  Sin = Opposite/Hypotenuse

  sin(50°) = (230 ft)/h

  h = (230 ft)/sin(50°) ≈ 300.24 ft

The length of the cable must be about 300.2 feet.

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  Tan = Opposite/Adjacent

  tan(50°) = (230 ft)/d

  d = (230 ft)/tan(50°) ≈ 192.99 ft

The cable must be anchored about 193.0 ft from the tower.

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3 years ago
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equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2,

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7 0
3 years ago
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s344n2d4d5 [400]
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A piece of space junk travels 5 miles in 8 seconds. How far does it travel per second?
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Step-by-step explanation:

A piece of space junk would travel 1.6 miles per second.

--Divide--

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