Answer:
84
Step-by-step explanation:
do you want the solution?
9514 1404 393
Answer:
B. (x +4)² +(y +5)² = 64
Step-by-step explanation:
The equation for a circle with center (h, k) and radius r is ...
(x -h)² +(y -k)² = r²
Filling in your given values, you have ...
(x -(-4))² +(y -(-5))² = 8²
Simplifying, you get ...
(x +4)² +(y +5)² = 64 . . . . . . . matches choice B
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<em>Additional comment</em>
As you learn more different "standard form" equations, it may be helpful to keep a list, along with reminders of what the variables stand for and how the equation is used.
They are different equations lol. If you plug in the same x and y for both you wont get the same answer. Do you have answer choices?
If you would like to know how many boys play video games daily, you can calculate this using the following steps:
55% of 80 = 55% * 80 = 55/100 * 80 = 44
Result: 44 boys play video games daily.
T=d/v
540/(230+w)=380/(230-w)
540(230-w)=380(230+w)
124200-540w=87400+380w
124200-920w=87400
-920w=-36800
w=40
So the wind speed is 40 miles per hour.
