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Pani-rosa [81]
3 years ago
12

central park in new york city is rectangular in shape and measures approximately 1.37 •10 4 feet by 2.64 •10 2 feet if one acre

is equal to 4.356 • 10 4 square feet how many acres does central park cover round to the nearest hundredth
Mathematics
1 answer:
lara [203]3 years ago
8 0
<span>83.03 acres. To solve this, first calculate how many square feet that central park covers. Just multiply its length and width. So 1.37x10^4 * 2.64x10^2 = 3.6168x10^6 Now divide its area in square feet by the number of square feet in an acre. 3.6168x10^6 / 4.356x10^4 = 8.303x10^1 = 83.03</span>
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Answer:

Step-by-step explanation:

-3 +2 +-1 +-2 +-3 +1 = -6 yards total

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2 years ago
The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi
lara [203]

Answer:

a) 33.33%)

b) 135 minutes

c) 8.66 min

d) 50%

Step-by-step explanation:

a) the probability for a uniform distribution is

P(b<X<a) = (a-b)/(c-d) , where c and d are the maximum and minimum values

therefore the probability that the flight is more than 140 minutes ( and less than 150 since it is the maximum value)

P(140<X<150) = (a-b)/(c-d) = (150-140)/(150-120) = 10/30 = 1/3 (33.33%)

b) the mean (expected value) for a uniform probability distribution is

E(X) = (c+d)/2 = (120+150)/2 = 135 minutes

c)  the standard deviation for a uniform probability distribution is

σ²(X)= (c-d)²/12 = (150-120)²/12 = 75 min²

σ = √75 min² = 8.66 min

b) following the same procedure as in a)

P(120<X<135) = (a-b)/(c-d) = (135-120)/(150-120) = 15/30 = 1/2 (50%)

4 0
3 years ago
Which equation has the solution x = 6?
ratelena [41]

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1/4x+1/2=1/3x

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
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lapo4ka [179]
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3 years ago
How To Solve these? ​
Inessa [10]

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a. 15/23

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a. When the denominators are the same, you can just sum the numerators.

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b. Same, when the denominator is the same, you can just minus the numerators. Which becomes, 25-12=13--> 13/27

c. 1kg=1000g. 1000/5=200✖️2=400

5 0
3 years ago
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