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Makovka662 [10]
3 years ago
15

Area of a 40cm semicircle

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
3 0
20 i think sorry if its wrong not my best subject.
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Identify the frequency of the graph
olya-2409 [2.1K]

ANSWER

\frac{1}{2}

EXPLANATION

The frequency of a wave function refers to the number of times the graph repeats its cycle within the interval [0,2π]

We can observe explicitly from the graph that the frequency is half.

The period of the given function is 4π

\frac{2\pi}{b} = 4\pi

b =  \frac{2\pi}{4\pi}  =  \frac{1}{2}

Hence the frequency is half.

4 0
3 years ago
Question 5 The enrollment at Davis Middle School dropped by 72 students over a 9 year period. What is the average yearly drop in
Mamont248 [21]

Answer:

it's 8

Step-by-step explanation:

just get 72 and divide it by 9 and that's the average over the 9 years.

7 0
3 years ago
If y has moment-generating function m(t) = e 6(e t −1) , what is p(|y − µ| ≤ 2σ)?
Lostsunrise [7]
Since \mathrm M_Y(t)=e^{6(e^t-1}, we know that Y follows a Poisson distribution with parameter \lambda=6.

Now assuming \mu,\sigma denote the mean and standard deviation of Y, respectively, then we know right away that \mu=6 and \sigma=\sqrt6.

So,

\mathbb P(|Y-\mu|\le2\sigma)=\mathbb P(6-2\sqrt6\le Y\le6+2\sqrt6)=\dfrac{66366}{175e^6}\approx0.940028
6 0
4 years ago
What is the volume of the rectangular prism if the length is 3/4 the width is 2/3 and the hight is 1/2
Leno4ka [110]
Multiply it all together 3/4 is 0.75 2/3 is 0.66 1/2 is 0.5 now do in your calculator 0.75+0.66+0.5 and becase everything is in fractions remember that you have to convert your decimal into a fraction your answer is 1 91/100
6 0
4 years ago
Vince weighs 160 pounds, and his friend Nadir weighs 140 pounds. Nadir calculated that his weight on another planet would be abo
Ymorist [56]

Answer: 64 lbs

Step-by-step explanation:

I divided 56/140 and got 0.4. Then multiplied 0.4 by 160 and got 64. SOunds about right to me.

You can double check by multipling 0.4 by 140 and you get 56.

4 0
3 years ago
Read 2 more answers
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