Answer:
A
Step-by-step explanation:
hope i helped you out :)
The radiusof <span> (x^2−6x)+(y^2−10y)=−18 </span>is 4
<h3>
<u>Explanation</u></h3>
- Solve the equation for s-term.
![- 4s = - 10 - 5s \\ - 4s + 5s = - 10 \\ s = - 10](https://tex.z-dn.net/?f=%20-%204s%20%3D%20%20-%2010%20-%205s%20%5C%5C%20%20-%204s%20%2B%205s%20%3D%20%20-%2010%20%5C%5C%20s%20%3D%20%20-%2010)
- Answer Check by substituting s = -10 in the equation.
![- 4( - 10) = - 10 - 5( - 10) \\ 40 = - 10 + 50 \\ 40 = 40 \: \: \tiny \boxed{ \green \checkmark}](https://tex.z-dn.net/?f=%20-%204%28%20-%2010%29%20%3D%20%20-%2010%20-%205%28%20-%2010%29%20%5C%5C%2040%20%3D%20%20-%2010%20%2B%2050%20%5C%5C%2040%20%3D%2040%20%5C%3A%20%20%5C%3A%20%20%20%5Ctiny%20%5Cboxed%7B%20%20%5Cgreen%20%5Ccheckmark%7D)
<u>No</u><u> </u><u>Solutions</u>
When both sides of equation are different. For example, 3 = 4 which makes the equation false. That means the equation is false for all real numbers, thus having no solutions.
<u>One</u><u> </u><u>Solution</u>
A common type solution because you see this type of solution a lot. If you can solve the equation for a variable like x = 2 or s = 0. That's one solution.
<u>Infinitely</u><u> </u><u>Many</u><u> </u><u>Solutions</u>
When both sides are same like 3 = 3 or 7 = 7. That means the equation is true for all real numbers. You can see this type of solution by solving the equation with same both sides like 3x+2 = 3x+2.
<h3>
<u>Answer</u></h3>
- Because we can solve the equation for s-term. Therefore the answer is <u>one</u><u> </u><u>solution</u>
t/120 ft = 2 ft/(4/3)ft
-----
t = 120[6/4] = 180 ft (tower's height)