Answer:
Hence x = -1 and y = 18
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Step-by-step explanation:
Given the system of equations
y + 8x = 10... 1
2y - 4x = 40 ... 2
From 1; y = 10-8x
Substitute into 2;
2(10-8x) - 4x = 40
20 - 16x - 4x = 40
20 - 20x = 40
-20x = 40 - 20
-20x = 20
x = -1
Recall that y = 10-8x
y = 10 - 8(-1)
y = 10 + 8
y = 18
Hence x = -1 and y = 18
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Answer:
39
Step-by-step explanation:
using line and triangle property you can solve this question
Answer:
90
Step-by-step explanation:
Answer:
It is 61 degress an acute angle.
Step-by-step explanation:
Assignment: 
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Answer: 
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Explanation: 
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[ Step One ] Rewrite 

[ Step Two ] Apply perfect square formula
Note: Perfect Square Formula: 


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