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adelina 88 [10]
3 years ago
15

25 POINTS!!!!

Mathematics
2 answers:
erastova [34]3 years ago
5 0
<span>Hey there, Lets solve this problem together. 

You are given two lengths of a right angled triangle, so Pythagoras' theorem is the way to go. 

</span>In algebraic terms, a² + b² = c² where c is the hypotenuse while a and b<span> are the legs of the triangle. 
</span>

In a right angled triangle:
the square of the hypotenuse is equal to
the sum of the squares of the other two sides.

c² (the diagonal squared) = a² (one length squared) + b²<span> (the other length squared)  

</span><span>leg a and b are both 3 

</span>3^2 + 3^2 = c^2&#10;

= 3 * 3 = 3^2&#10;

= 9 + 9 = c^2 

9 + 9 =18 

18 = c^2 

<span>The opposite of ^2 is ^1/2 also known as the square root
</span>
<span>c = sqrt(18)</span>

Solved = <span>c≈4.24 
</span>



postnew [5]3 years ago
3 0
It will be square root of 6
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A meeting on an unpopular topic has been announced. The number of attendees may be modeled by X where What is the probability th
krok68 [10]

Answer:

The probability that at least 5 people attend the meeting given that at least 2 attend is 12.50%.

Step-by-step explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question as follows:

A meeting on an unpopular topic has been announced. The number of attendees may be modeled by X where:

P(X = x) = 1 / 2^(x+1), for x = 0,1,2,...

What is the probability that at least 5 people attend the meeting given that at least 2 attend?

The explanation of the answer is now provided as follows:

Given:

P(X = x) = 1 / 2^(x+1), for x = 0,1,2,...                    (1)

Since it is given that at least 2 attend, it implies that we need to calculate P(x) at x = 2.

Substituting x = 2 into equation (1), we have:

P(X = 2) = 1 / 2^(2 + 1)

P(X = 2) = 1 / 2^3

P(X = 2) = 1 / 8

P(X = 2) = 0.1250, or 12.50%

Therefore, is the probability that at least 5 people attend the meeting given that at least 2 attend is 12.50%.

7 0
3 years ago
HELP PLEASE!!! SHOW WORK!! A professional pianist spends an average of 45 hours practicing the piano in a three-week period. Usi
kicyunya [14]

Answer:

An average of about 450 hours; You could say something along the lines of "If the pianist who practices an average of 45 hours per week practices everyday for three months, they would play for approximately 450 hours total."

Step-by-step explanation:

We could write an equation to make it simpler to figure out, making the number of hours after three months = n, 4 = weeks in a month, 3 = the number of months, and 45 = the number of hours after a week. As an equation, it would look like:

45 * 3 * 4 = n

We know 3 *4 is 12, so the equation becomes 45 * 12 = n.

45 * 12 = 540, therefore the pianist practices an average of approximately 540 hours over a three-month period of time.

4 0
3 years ago
4 is less than w, and 8 is greater than or equal to w​
sesenic [268]

Answer:

4 < w

8 > w

The greater than sign would have a line under it.

Step-by-step explanation:

7 0
2 years ago
WILL GIVE BRAINLIEST
frez [133]

Answer:

She will make a profit of one dollar because the cost of operation and production is 203 dollars in total and selling 17 necklaces she will make 204 dollars

Edit: b) She will need to sell exactly seventeen necklaces

Step-by-step explanation: Hope this helps!

5 0
3 years ago
A public swimming pool that holds 45,000 gallons of water is going to be drained for maintenance at a rate of 100 gallons per mi
crimeas [40]

Answer:

450 minutes

Step-by-step explanation:

Given

w = 45000 - 100t

Required

Determine how long it'll take to empty the pool

Being empty means there's no water in the pool.

So, we have to set w to 0 to get the value of t

i.e w = 0

Substitute 0 for w in w = 45000 - 100t

0 = 45000 - 100t

Collect Like Terms

100t = 45000

Divide through by 100.

t = 450

Hence, it'll take 450 minutes to empty the pool

8 0
3 years ago
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