The answer should be 9 rounded because 2 pi r 56.5 will give u that.
The surface area of a sphere is A = 4 π R² .
Sadly, the question doesn't give you 'R', so you have to
back it out of the circumference.
Circumference = π (diameter)
Divide each side by π : Diameter = circumference / π
Radius = 1/2 diameter: Radius = circumference / (2 π)
Area = 4 π R² =
4 π (circumference/2π)² =
4 π (circumference)² / 4 π²
Divide top and bottom by 4π : Area = (Circumference)² / π
Circumference = 37.68 units
Area = (37.68)² square units /π =
<em>451.93 square units</em>
Answer:
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Step-by-step explanation:
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Slope = Vertical rise / Horizontal run
Slope = 2 / 36
Slope = 1/18
Slope ≈ 0.0556
Answer:
1)B= 3 ; standard form y = 4x/3 + 7/3 2)A= -7 ; standard form y = 7x -3
Step-by-step explanation:
1.) <em>We can substitute the coordinates of the known point of the line: </em>
-4x + By = 7 ; (-1,1)
-4(-1) + B(1) = 7
4 + B = 7
B = 7- 4 = 3
-4x + 3y = 7
y = (4x + 7)/3
Equation 1 in standard form:
1.) y = 4x/3 + 7/3
2.) <em>We can substitute the coordinates of the known point of the line: </em>
Ax + y = -3 ; (2,11)
A(2) + (11) = -3
2A + 11 = -3
2A = -3 -11 = -14
A = -14/2 = -7 coefficient A
-7x + y = -3
Equation 2 in standard form:
2.) y = 7x -3
Answers:
1) B= 3 ; standard form y = 4x/3 + 7/3 2) A= -7 ; standard form y = 7x -3
<h2><em>Spymore</em></h2>
