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Elden [556K]
1 year ago
13

Pentagon ZEBRA is similar to pentagon

Mathematics
1 answer:
LuckyWell [14K]1 year ago
6 0

After performing some mathematical operations, the length of RA is 15 feet.

<h3>What are mathematical operations?</h3>
  • A function in mathematics known as an operation is one that transforms zero or more input values into a clearly defined output value.
  • The operation's complexity is determined by its operand count.
  • The four mathematical operations are functions that take numerical inputs (i.e., inputs) and turn them into numerical outputs (i.e., another number).
  • These are multiplication, division, subtraction, and addition.

So, the length of RA is:

As both the pentagons are similar, then:

  • EB/IO = 13/10.4 = 1.25
  • BR/ON = 18/14.4 = 1.25
  • ZA/LS = 20.16 = 1.25
  • EZ/IL = 22/17.6 = 1.25

Similarly,

  • RA/NS = RA/12 = 1.25
  • RA = 12 × 1.25 = 15 ft

Therefore, after performing some mathematical operations, the length of RA is 15 feet.

Know more about mathematical operations here:

brainly.com/question/20628271

#SPJ13

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A computer chess game and a human chess champion are evenly matched. They play twelve games. Find probabilities for the followin
sleet_krkn [62]

Answer:

The probability that they each win six games is 0.225.      

Step-by-step explanation:

Given : A computer chess game and a human chess champion are evenly matched. They play twelve games.

To find : The probability that they each win six games?

Solution :

Applying binomial distribution,

Here n=12 and p=0.5

P(X=k)=\frac{n!}{k!(n-k)!}\times p^k\times (1-p)^{n-k}

The probability that they each win six games is k=6.

P(X=6)=\frac{12!}{6!(12-6)!}\times 0.5^6\times (1-0.5)^{12-6}

P(X=6)=\frac{12\times 11\times 10\times 9\times 8\times 7\times 6!}{6\times 5\times 4\times 3\times 2\times 6!}\times 0.015625\times 0.015625

P(X=6)=11\times 2\times 3\times 2\times 7\times 0.015625\times 0.015625

P(X=6)=0.225

Therefore, The probability that they each win six games is 0.225.

3 0
3 years ago
Solve 6-7+3(-11+5)(-11+5)-5
andrew11 [14]
I think it's 112 I did it in my head might be wrong
6 0
3 years ago
Find all values of x such that sin 2x = sin x and 0 ≤ x ≤ 2π.
jarptica [38.1K]
Hello : 
<span> sin 2x = sin x and 0 ≤ x ≤ 2π.
all solutions : 
2x= x +2k</span>π    or x= π -x +2kπ ..... k in : Z
x = 2kπ  or : x = π/2 + kπ 
but :
 <span>0 ≤ x ≤ 2π
</span><span>all values of x such that sin 2x = sin x and 0 ≤ x ≤ 2π are : 
</span>k = 0 : x=0    , x= π/2
k=1 : x=2 π    , x=3π/2
5 0
3 years ago
The average sunflower has 34 petals. What is the best estimate of the total number of petals on 57 sunflowers?
stellarik [79]
Your initial instinct would be to solve this problem with this solution. 34 x 57 = 1,938 petals.

However, the word estimate is present; therefore, we have to consider that we need to get the approximate number and not the exact number of petals.

There is a general rule regarding estimation or approximation. You have to round it to the nearest place you have based on. In this problem we round it off to the nearest tens place.

If the number is below 5, you round it down: 34 is rounded down to 30 petals.

If the number is above 5, you round it up: 57 is rounded up to 60 sunflowers.

Thus, your equation would be :  30 x 60 = 1,800 petals (best estimate)


3 0
3 years ago
What is the range of this set of numbers?
Phantasy [73]

Answer:

B. 5

Step-by-step explanation:

The range of a data set in statistics is the difference between the largest and the smallest values. While range does have different meanings within different areas of statistics and mathematics, this is its most basic definition, and is what is used by the provided calculator.

example, 2,10,21,23,23,38,38

38 - 2 = 36

5 0
2 years ago
Read 2 more answers
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