Answer:
Use the cosine rule
Step-by-step explanation:
1. Apply formula of c^2 = a^2 + b^2 - 2abcosC
2. Substitute known values in: c^2 = 36 + 4900 - 840cos120
3. Apply algebra and use the calculator
4. Final answer is 73.18 (2 decimal places)
A is the correct answer because the parabolas never touch.
Answer:
x + 5 divided by x - 5 = 10
Then we can solve it as
x + 5 = 10 ( x - 5 )
x + 5 = 10x - 50
Collecting the variables to one side & numericals to other side then the equation becomes
10x - x = 5 + 50
or 9x = 55
Therefore x = 55/9
If this is not what you wrote then please check Mr. Thornton’s reply.
Step-by-step explanation:
147 ÷ 15 3/4 = 9.333333333333333333 with a repetition bar over the first 3.
R= <span><span>√<span><span>x²</span>+<span>y²</span></span></span>
</span> = 16 or <span><span>(<span>x²</span>+<span>y²</span>)</span>
</span> = <span><span>16²</span>
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