5x^2 - 80 = 0
5x^2 = 80
x^2 = 80/5
x^2 = 16
x = sqrt 16
x = (4,-4) <===
we are given

now, we can find x , y and z components

Arc length calculation:
we can use formula


now, we can plug these values

now, we can simplify it




now, we can solve integral


now, we can plug bounds
and we get

so,
..............Answer
Answer:
The first recipe - 3/4 tsp of salt in 1 cup of water
Step-by-step explanation:
1st recipe Salt per cup = 3/4 tsp / 1 cup = <em>3/4 tsp salt</em>
2nd recipe Salt per cup = 1 tsp / 2 cups = <em>1/2 tsp salt</em>
3/4 tsp > 1/2 tsp, hence the first recipe is saltier
Right triangle bc a^2+b^2=c^2. (Pythagorean theorem)
A quadrilateral has 4 angles that add up to 360 degrees. So, to solve for x:
85+150+55=290
360-290= 70
X= 70 degrees