<u>By substitution method </u>
5x - 3y =1
3x + 2y = 1
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I hope I helped you^_^
Domain (the range of x values)
Range (the range of the y values)
Domain: (-9, 11)
Range: (-4, 6)
Using the cosine rule, the equation to use to solve for x is: x = √(4.0² + 4.7² − 2(4.0)(4.7) × cos(41)) ≈ 3.1 cm.
<h3>How to Use the Cosines Rule to Solve a Triangle?</h3>
The cosine rule is given as, c = √(a² + b² − 2ab × cos(C))
Given the following:
- c = x = ?
- a = 4.0 cm
- b = 4.7 cm
- C = 41°
Plug in the values:
x = √(4.0² + 4.7² − 2(4.0)(4.7) × cos(41))
x ≈ 3.1 cm
Learn more about the cosine rule on:
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Answer:
1024m
Step-by-step explanation:
128÷4=32
32×32=1024
Answer:
x=1/2; x=-3
Step-by-step explanation:
2x^2+5x-3=0
(2x-1)(x+3)=0
2x-1=0; x=1/2
x=-3