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fiasKO [112]
3 years ago
11

1. 2口-42. 2口-103. -7口54.365.9D-9​

Mathematics
2 answers:
aivan3 [116]3 years ago
7 0

Answer:

I can't understand ,what you are asking...

Marina86 [1]3 years ago
4 0

Answer:

cannot understamddgifyuxxhxj

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At a certain airport, 65% of the flights arrive on time. A sample of 10 flights is studied. Find the probability that all 10 of
babunello [35]

Answer:

So, the probability is P=0.0135.

Step-by-step explanation:

We know that at a certain airport, 65% of the flights arrive on time.

We get that p=0.65 and q=1-0.65=0.35.

We have 10 flights, so n=10.

We calculate the probability that all 10 of the flights were on time, so k=10.

We use the formulu:

\boxed{P(X=k)=C^n_k \cdot p^k\cdot q^{n-k}}

we get:

P(X=10)=C^{10}_{10}\cdot 0.65^{10}\cdot 0.35^0\\\\P(X=10)=1\cdot 0.0135\cdot 1\\\\P(X=10)=0.0135\\

So, the probability is P=0.0135.

5 0
4 years ago
Inverse notation f^-1 used In a pure mathematics problem is not always used when finding inverses of applied problems. Rather, t
solong [7]

Answer:

a) 75.4 kg

b) h(W)=\frac{W+83}{2.2}

Step-by-step explanation:

a) The ideal weight of a 6-foot (72 inches) male is given by simply applying h= 72 in to the expression:

W(72) = 49+2.2(72-60)\\W(72) =75.4\ kg

b) Expressing height as a function of weight:

W(h)= 49+2.2(h-60)\\2.2h-132+49=W\\h(W)=\frac{W+83}{2.2}

Verifying with W(h(W)):

W(h(W))= 49+2.2(\frac{W+83}{2.2} -60)\\W(h(W))= 49-132+W+83\\W(h(W))=W

Verifying with h(W(h):

h(W(h))=\frac{(49+2.2(h-60))+83}{2.2}\\h(W(h))=\frac{(49+2.2h-132+83)}{2.2}\\h(W(h))=h

8 0
3 years ago
Mrs. Woods wants to give each of her 25 students a pencil on the first day
Nezavi [6.7K]

Answer

<h2><u><em>3 boxes</em></u> </h2>

Step-by-step explanation:

So she needs to give 25 pencils to each student.

1 box = 12

number of boxes = 25/12

                                  =2.08

round it to 3

<h2><em>Therefore she need </em><u><em>3</em></u><em> boxes</em></h2>

<em></em>

4 0
2 years ago
49= how many feet and inches
pychu [463]

Answer:

I'm not sure how you are asking this question because this is not exactly a question and I needed to know what the 49 was but I have an idea..

Step-by-step explanation:

49ft = 588 in

4 0
4 years ago
Read 2 more answers
What are the explicit equation and domain for an arithmetic sequence with a first term of 5 and a second term of 2?
tigry1 [53]
General equation is 

an = a1 + (n-1)d     where a1 = first term and d = common difference

here d= 2-5 = -3  and  a1 = 5

so an = 5 -3(n-1) is the explicit equation required.
4 0
4 years ago
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