The radius is 4.
Find the radius of the circle whose equation is (x + 5)2 + (y + 8)2 = 16
Solution: We are given:
μ=180,σ=25,n=100
Therefore the standard error of the mean is



Answer:
15(a)(b)(c)
Step-by-step explanation:
I don't know what your asking for
Step-by-step explanation:
If the two chords are congruent, then they must be equidistant from the centre of the circle.
Answer: <u><em>D) They must be perpendicular</em></u>
A is rejected because the chord might not pass through the center of the circle.
B is rejected because the chords are not obligated to be parallel.
C is rejected because it is not compulsory for the chords to be perpendicular.