Hey there!
Let's set up an algebraic equation to represent this problem:
![x^2=20](https://tex.z-dn.net/?f=%20x%5E2%3D20%20)
In order to get rid of the squared, we need to take the square root of both sides, therefore, our answer is:
![x= \sqrt{20}](https://tex.z-dn.net/?f=%20x%3D%20%5Csqrt%7B20%7D%20%20)
Your answer is the square root of 20.
Hope this helps!
Answer:
51 guests
Step-by-step explanation:
150+30x
1700=150+30x
1550=30x
x=1550/30=51
Answer:
The algebraic equation would be 3 + x - 4 = 6
Answer:
Explanation:
-8 = (x + 11)/2
-8 • 2 = x + 11
-16 = x + 11
-16 - 11 = x
-27 = x
Or x = -27
Check:
-8 = (-27 + 11)/2
-8 = -16/2
-8 = -8
Therefore, x = -27
<u>Answer</u>
-3/√13
<u>Explanation</u>
We are going to take angle ∅ to be at the origin (point (0,0)).
The point at (-2, -3) means, 2 units to the left (negative side of x-axis) and 3 units downwards (negative side of y-xis).
This will make a right triangle with a hypotenuse of √(2²+3²) = √13
The angle ∅ is in the 3rd quadrant where cosine is negative.
cosine = adjacent/hypotenuse
The exact answer for cos ∅ = -2/√13