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sattari [20]
3 years ago
13

The first city is in the shape of a square

Mathematics
2 answers:
wariber [46]3 years ago
7 0

Answer:

true

Step-by-step explanation:

AfilCa [17]3 years ago
5 0

Answer:

I think so.

Step-by-step explanation:

The city of Eridu, close to Uruk, was considered the first city in the world by the Sumerians while other cities which lay claim to the title of `first city' are Byblos, Jericho, Damascus, Aleppo, Jerusalem, Sidon, Luoyang, Athens, Argos, and Varasani, (structures on a 1,000 ft (300 m) square platform).

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one serving of cereal is 32 grams ella needs 18 servings of cereal for a soccer team breakfast she wants to buy enough cereal wi
Mumz [18]
You should buy 576 grams of cereal. I believe this is right because 32g x 18=576. But you might want me to work it different or something. 
5 0
3 years ago
Assume that 63% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below
mash [69]

Answer:

a. 0.9931

b. 0.3423

c. 0.3907

d. 0.2670

e. 3.15

f. 1.0796

Step-by-step explanation:

The probability of the variable that said the number of left-handed people follow a Binomial distribution, so the probability is:

P(x)=nCx*p^{x}*(1-p)^{n-x}

nCx is calculated as:

nCx=\frac{n!}{x!(n-x)!}

Where x is the number of left-handed people, n is the number of people selected at random and p is the probability that a person is left--handed. So P(x) is:

P(x)=5Cx*0.63^{x}*(1-0.63)^{5-x}

Then the probabilities P(0), P(1), P(2), P(3), P(4) and P(5) are:

P(0)=5C0*0.63^{0}*(1-0.63)^{5-0}=0.0069

P(1)=5C1*0.63^{1}*(1-0.63)^{5-1}=0.0590

P(2)=5C2*0.63^{2}*(1-0.63)^{5-2}=0.2011

P(3)=5C3*0.63^{3}*(1-0.63)^{5-3}=0.3423

P(x)=5C4*0.63^{4}*(1-0.63)^{5-4}=0.2914

P(x)=5C5*0.63^{5}*(1-0.63)^{5-5}=0.0993

Then, the probability P(x≥1) that there are some lefties among the 5 people is:

P(x≥1) = P(1) + P(2) + P(3) + P(4) + P(5)

P(x≥1) = 0.0590 + 0.2011 + 0.3423 + 0.2914 + 0.0993 = 0.9931

The probability P(3) that there are exactly 3 lefties in the group is:

P(3) = 0.3423

The probability P(x≥4) that there are at least 4 lefties in the group is:

P(x≥4) = P(4) + P(5) = 0.2914 + 0.0993 = 0.3907

The probability P(x≤2) that there are no more than 2 lefties in the group is:

P(x≤2) = P(0) + P(1) + P(2) = 0.0069 + 0.0590 + 0.2011 = 0.2670

On the other hand, the expected value E(x) and standard deviation S(x) of the variable that follows a binomial distribution is:

E(x)=np=5(0.63)=3.15\\S(x)=\sqrt{np(1-p)}=\sqrt{5(0.63)(1-0.63)}=1.0796

6 0
3 years ago
|z−7|−|z−9| , if z&lt;7?<br> Write without absolute value
Deffense [45]

Answer:

z+7-z+9

Step-by-step explanation:

5 0
3 years ago
Which equation shows that the Pythagorean identity is true for 0 = 27? Select
oksano4ka [1.4K]

9514 1404 393

Answer:

  B. 0^2 +1^2 = 1

Step-by-step explanation:

For θ = 2π, the trig identity is ...

  sin(2π)² +cos(2π)² = 1

  0² +1² = 1

3 0
3 years ago
What’s the answer ??
ollegr [7]

Answer:

Step-by-step explanation:

radius r = 10/2 = 5 ft

height h = 5 ft

Volume = πr²h = π(5²)(5) = 125π ≈ 392.7 ft³

5 0
2 years ago
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