I am assuming you mean 4/7 as the sine or cosine cannot be higher than 1.
Lets find <span>θ,
</span>
θ = [sin-1](4/7) = 34.85 °
But lets take into account that this value is the equivalent in Quadrant I.
If Θ lies in Quadrant II , then θ = 180 ° - 34.85 ° = 145.15 °
So cosθ = cos (145.15) = -0.821
Answer:
Q(x) is = to 11x² that's my answer
You use the distributive property to simplify expressions.
4x+3(2x+1)
2 times 2x is 6x
3 times 1 is 3
4x times 2x is 8x
4x times 1 is 4x
total that is 6x+8x+4x+3=18x+3
Hope it helps!
<h2>
Answer:</h2><h3>
There are 2 ways to solve this system: by substitution or by graphing. I will solve this system using both.</h3>
<u>Substitution Method</u>
For x:
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For y:
Solution:
<u>Graphing Method</u>
According to this graph, the solution will be .