Answer:
θ = 76.4°
θ = 1.33 radians
Step-by-step explanation:
Length of an arc is given as
L = (θ/360) × 2πr
L = 4 m
θ = angle subtended at the centre of the circle by the arc in degrees = ?
r = radius of the circle = 3 m
4 = (θ/360) × 2π(3)
θ = (4×360)/6π
θ = 76.4°
L = θ r
where θ = angle subtended at the centre of the circle by the arc in radians
4 = θ × 3
θ = (4/3) = 1.33 radians
OR we could do a direct conversion
360° = 2π radians
76.4° = (76.4 × 2π)/360
θ = (4/3) radians = 1.33 radians
Hope this Helps!!!
Step-by-step explanation:
Below is an attachment containing the solution.
The number of times that both coins come up heads will be 26.25.
In parameter estimation, the expected value is an application of the weighted sum. Informally, the expected value is the simple average of a considerable number of individually determined outcomes of a randomly picked variable.
The expected value is given below.
E(x) = np
Where n is the number of samples and p is the probability.
If two coins are flipped. Then the total number of the event is given as,
Total = 2 x 2 = 4 {HH, HT, TH, TT}
Favorable event = 1 {HH}
The probability of getting both same, then we have
P = 1/4
Jenna flips two pennies 105 times. Then the number of times that both coins come up heads will be given as,
E(x) = p × n
E(x) = 1/4 × 105
E(x) = 26.25
The number of times that both coins come up heads will be 26.25.
More about the expected value link is given below.
#SPJ2
a)
circumcenter
b)
incenter
c)
centroid
d)
orthocenter
Answer:
a) circumcenter
Step-by-step explanation:
You want to know the name of the point of intersection of the three perpendicular bisectors of the sides of a triangle.
Each side of a triangle is a chord of the circumscribed circle. The perpendicular bisector of a chord is a line through the center of the circle. Hence the point of concurrency of the perpendicular bisectors of the sides of a triangle is the center of the circumscribed circle.
The name of the center of the circle circumscribing a triangle is "circumcenter."
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Additional comment
When the triangle is a right triangle, the circumcenter is the midpoint of the hypotenuse, which is a diameter of the circle.
Positive, because the products (-5)(-3) and (-8)(-6) are positive, and the product of two positive numbers is positive
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Explanation:
Recall we have these rules
Here is one example for each rule
So based on that, we know that (-5)(-3) is positive. The two negatives cancel each other out so to speak. The same goes for (-8)(-6). Then multiplying any two positive numbers produces another positive outcome.
Answer:
148 cm^2.
Step-by-step explanation:
It has 2 surfaces of area 5*6, 2 of 5*4 and 2 of 4*6.
= 2*30 + 2*20 + 2*24
= 60 + 40 + 48
= 148 cm^2.
experiment does not led
Answer:
D: the wiring and the other
Step-by-step explanation:
Answer:
The liquid and the medal
Step-by-step explanation: "So the electrons start to move from one metal to the other through the liquid. This creates current" This is why i would check the liquid and the medal. if the experiemnt doesnt work then there must be something wrong with the current