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Lubov Fominskaja [6]
3 years ago
8

Is the function y= sin(x)/x even, odd or neither

Mathematics
2 answers:
Bad White [126]3 years ago
8 0
The function is odd
dmitriy555 [2]3 years ago
5 0

By definition, a function f is even if f(−x)=f(x) . Since sin(−x)=−sinx , it implies that sinx is an odd function. That is why for example a half range Fourier sine series is said to be odd as well since it is an infinite sum of odd functions.

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Suppose that only 65% of all drivers in a certain state wear a seat belt. a random sample of 80 drivers is selected. what is the
jonny [76]

Answer:

Pr(X >42) = Pr( Z > -2.344)

                = Pr( Z< 2.344) = 0.9905

Step-by-step explanation:

The scenario presented can be modeled by a binomial model;

The probability of success is, p = 0.65

There are n = 80 independent trials

Let X denote the number of drivers that wear a seat belt, then we are to find the probability that X is greater than 42;

Pr(X > 42)

In this case we can use the normal approximation to the binomial model;

mu = n*p = 80(0.65) = 52

sigma^2 = n*p*(1-p) = 18.2

Pr(X >42) = Pr( Z > -2.344)

                = Pr( Z< 2.344) = 0.9905

7 0
3 years ago
Using the given degree measure give two coterminal angle (one negative and one positive) and the reference angle. - 40°​
horsena [70]

Answer: C 2021 edg

Step-by-step explanation:

3 0
3 years ago
andres is 1.65 meters tall. At 2 p.m., he measures the length of a tree's shadow to be 40.15 meters. He stands 35 meters away fr
almond37 [142]

Answer:

Step-by-step explanation:

3 0
3 years ago
Write the equation of the circle centered at ( 4 , − 5 ) with radius 18.
Free_Kalibri [48]

Answer:

(x-4)^2 + (y+5)^2 = 324

Step-by-step explanation:

The equation of a circle is given by the equation (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center point of the circle.

Therefore, since the center point of the circle and the radius is given, we can just plug the numbers into the formula:

(x-4)^2 + (y+5)^2 = 18^2

<u>(x-4)^2 + (y+5)^2 = 324</u>

3 0
3 years ago
Which angles are in the exterior ​
Andre45 [30]

Answer:

a, b, f, and h

Step-by-step explanation:

3 0
3 years ago
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