A circle has a circumference of 85 units. approximate the diameter of the circle. 14 units 27 units 54 units 170 units
2 answers:
Answer: The correct option is (B) 27 units.
Step-by-step explanation: Given that a circle has a circumference of 85 units.
We are to find the approximate length of diameter of the circle.
The circumference of a circle with diameter d units is given by
In the given circle, we have
C = 85 units, diameter, d = ?
So,
Thus, the approximate length of the diameter is 27 units.
Option (B) is CORRECT.
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Answer: They are not perpendicular because their slopes are not negative reciprocals.
Step-by-step explanation:
For these two lines to be perpendicular, their slopes have to be negative reciprocals.
Slope of FG.
F = (-4, 1)
G = (0, -2)
= (Y₂ - Y₁) / (X₂ - X₁)
= (-2 - 1) / (0 + 4)
= -3/4
Slope of HJ
J = (0 , 4)
H = (-4, -2)
Slope = (Y₂ - Y₁) / (X₂ - X₁)
= (-2 - 4) / (-4 -0)
= 6/4
= 3/2
<em>The slopes of these lines are not negative reciprocals so these lines are not perpendicular. </em>
Answer:
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Step-by-step explanation:
Given
(President, Treasurer and Secretary)
Required
Determine number of selection (if no restriction)
This is calculated using the following combination formula:
Where
So, we have:
<em>There are 220 choices</em>