For this case the area of the sector is given by:
A = (S '/ S) * (pi) * (r ^ 2)
Where,
S '/ S = relation of arcs
r: radius of the circle
Substituting values we have:
A = (7.4/360) * (3.14) * (13 ^ 2)
A = 10.9080111
Rounding off we have:
A = 10.9 cm^2
Answer:
the area of sector is:
A = 10.9 cm^2
Answer:
a = 2.18 units
Step-by-step explanation:
The answer is 12.58 rounded up it would be 13 so the correct answer is A
Answer:
0.2207
Step-by-step explanation:
Here, we want to find the probability that the sample mean is greater than 25.
What we use here is the z-scores statistic
Mathematically;
z-score = (x-mean)/SD/√n
From the question;
x = 65, mean = 63, SD = 13 and n = 25
Plugging these values in the z-score equation, we have
Z-score = (65-63)/13/√25 = 2/13/5 = 0.77
So the probability we want to calculate is ;
P(z > 0.77)
This can be obtained from the standard normal distribution table
Thus;
P(z > 0.77) = 0.22065 which is 0.2207 to 4 d.p
Incomplete question the complete question with the diagram is given below.
Answer:
The Correct option is second one 17 units.
Therefore the Length of BE is 17 units.
Step-by-step explanation:
Given:
∠BAE = ∠DAE
BE = 3x - 24
DE = x + 10
To Find :
Length of BE = ?
Solution:
∠BAE = ∠DAE .........Given:
As Chords that subtend congruent angles are congruent. That is equal angles subtends equal chords.
So
, the chord BE and DE are equal
Substituting the values we get
Therefore the Length of BE is 17 units.
