1 answer:
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Answer:
245.56
Step-by-step explanation:
Answer:
unit rate of water dripped per day is or 1.6 gallons.
Step-by-step explanation:
We fist have to ask ourselves how many 10 hours are in a day— the answer is
there are or 2.4 sets of 10-hours in day.
Now the unit rate of water dripped per day is
unit rate of water dripped per day is or 1.6 gallons.
Answer:
(x + 5)² + (y + 8)² = 49
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
here (h, k) = (- 5, - 8), so
(x - (-5))² + (y - (- 8))² = r², that is
(x + 5)² + (y + 8)² = r²
The radius is the distance from the centre to a point on the circle
Use the distance formula to calculate r
r = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 5, - 8) and (x₂, y₂ ) = (2, - 8)
r = =
=
= 7
r = 7 ⇒ r² = 7² = 49
Hence
(x +5)² + (y + 8)² = 49 ← equation of circle