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WINSTONCH [101]
3 years ago
14

5!(3!)/4! all include factorials. what to do?

Mathematics
1 answer:
shtirl [24]3 years ago
6 0
5! Is the same as 5x4x3x2x1 and 4! Is the same as 4x3x2x1 because 4! Is in the denominator it cancels the 4x3x2x1 in the numerator and you are left with 5x(3!) witch is the same a 5x3x2x1. The answer=30
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Wingspans of adult horses have approximate normal distribution with mean 125 cm and standard deviation 12 cm. What are the rst a
blagie [28]

Answer:

The first and third quartile of the wingspans are 116.9 cm and 133.1 cm respectively.

Step-by-step explanation:

The first and third quartile of a normal distribution are:

Q_{1}=\mu-0.675\sigma\\\\Q_{3}=\mu+0.675\sigma

The information provided is as follows:

\mu=125\\\sigma=12

Compute the first and third quartile of the wingspans as follows:

Q_{1}=\mu-0.675\sigma=125-(0.675\times 12)=116.9\\\\Q_{3}=\mu+0.675\sigma=125+(0.675\times 12)=133.1

Thus, the first and third quartile of the wingspans are 116.9 cm and 133.1 cm respectively.

7 0
3 years ago
Fred buys a video game disk for $4. There was a discount of 20%. What is the sales price?
dem82 [27]
4*20%
4*.2=
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4-.8=
3.2
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7 0
3 years ago
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mamaluj [8]
All of Randy’s thing in his desk are round
7 0
3 years ago
1. Is the line that passes through the points A(0,1) and B(2,5) parallel to the line that passes through the points C(0,7) and D
kifflom [539]

You are correct that the slope of line AB is 2. To find the slope of the line CD, we can apply the slope formula again (like I assume you did with AB).

m=\frac{15-7}{4-0}=\boxed{2}

Therefore, since the slopes of lines AB and CD are equal, they are <u>parallel</u>

6 0
2 years ago
I need help on 1, 2, an 3
e-lub [12.9K]

Answer: 1. A) 2/5 B) X= -5 Y= 2

2. A) -3/2 B) X= 2 Y= 3

3. A) -2/3 B) X= -3 Y= -2

Step-by-step explanation: A) Look where the line intersects perfectly through a corner of one of the boxes, find the next one closes to that count how many it goes up and how many across. Rise/Run so the amount it goes up goes on the top of the fraction and the amount across on the bottom of the fraction.

B) This is where the line intersects the X and Y axis

5 0
3 years ago
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