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dangina [55]
3 years ago
14

Find a similarity ratio is the ratio of perimeter's for to regular pentagons with areas of 16 cm Square and 49 cm Square

Mathematics
1 answer:
sweet [91]3 years ago
5 0

Answer:

4 : 7

Step-by-step explanation:

Given 2 similar figures the if the ratio of perimeters = a : b

The the ratio of areas = a² : b²

Here

ratio of areas = 16 : 49 , then

ratio of perimeters = \sqrt{16} : \sqrt{49} = 4 : 7

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You are planning a May camping trip to Denali National Park in Alaska and want to make sure your sleeping bag is warm enough. Th
Goshia [24]

The probability that this bag will be warm enough on a randomly

selected May night at the park is 0.8106 ⇒ answer C

Step-by-step explanation:

You are planning a May camping trip to Denali National Park in Alaska

and want to make sure your sleeping bag is warm enough.

The average low temperature in the park for May follows a normal

distribution

The given is:

1. The mean is 32°F

2. The standard deviation is 8°F

3. One sleeping bag you are considering advertises that it is good for

   temperatures down to 25°F (x ≥ 25)

At first let us find the z-score

∵ z = (x - μ)/σ, where x is the score, μ is the mean, σ is standard deviation

∵ μ = 32°F , σ = 8°F , x = 25°F

- Substitute these values in the rule

∴ z = \frac{25-32}{8}=-0.875

Now let us find the corresponding area of z-score in the normal

distribution table

∵ The corresponding area of z = -0.875 is 0.18943

∵ For P(x ≥ 25) the area to the right is needed

∵ P(x ≥ 25) = 1 - 0.18943 = 0.8106

∴ P(x ≥ 25) = 0.8106

The probability that this bag will be warm enough on a randomly

selected May night at the park is 0.8106

Learn more:

You can learn more about mean and standard deviation in brainly.com/question/6073431

#LearnwithBrainly

3 0
3 years ago
See photo PLEASE HELP:(
slega [8]

Answer:

1/5

Step-by-step explanation:

<u>silk butterfly =    4cm=1 </u>  (this is the reduce form )

butterfly            20cm=5            

                                                           Also you will just divide this by 4

8 0
3 years ago
A random sample of 20 UF students is taken to test UFs claim that 54% of the student population are female.
baherus [9]

You didn't give the multiple choice so no one can help you do make sure to include that next time

8 0
2 years ago
Solve y over negative 2 5 = 13.
devlian [24]
Y/-2 + 5 = 13
y/-2 = 13 - 5 = 8
y = -2(8) = -16
y = -16
8 0
3 years ago
Read 2 more answers
What is 50 miles on 2.5 gallons as a unit rate
Bas_tet [7]
50/2.5= 20 Unit rate is 20 miles per gallon
4 0
3 years ago
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