Answer:
x^2+y^2=16
Step-by-step explanation:
x^2+y^2=r^2 is the mother function of the equation of a circle centered at r with radius r
since r is defined to be 4 and 4^2 is 16 therefore, the equation would then be
x^2+y^2=16
Since the two cylinders are congruent, it means that their dimensions are exactly the same thing.
In other words, the radius of cylinder 1 is the same as that of cylinder 2, and the height of cylinder 2 is the same as that of cylinder 1. This is what it means for two solid shapes to be congruent.
Now, to find the volume of cylinder 2, we apply the frmula for the volume of a tyical cylnder:
Now,
radius of cylinder 2 = radius of cylinder 1 = 3
height of cylinder 2 = 8
Thus: r = 3, h= 8
Therefore:
Therefore the volume of cylinder 2 is 72pi cubic units (Option D)
<span>Add the three amounts first.
$2,889.32 + </span>$2,996.42 + <span>$3,435.53 = $9321.27
Now divide the total amount of sales by the cost per gallon to find the number of gallons.
9321.27/1.19 = 7833
Answer: The total amount of regular gas sold on Tuesday, Wednesday, and Thursday was 7833 gallons.
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Answer:
x = 18
Step-by-step explanation:
y = x + 8
2x + y = -10
Add 10 to 8, then subtract x from 2x leaving you with one x, and finally subtract y from y leaving you with X = 18