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forsale [732]
3 years ago
15

Pls help answer question in picture

Mathematics
1 answer:
spayn [35]3 years ago
7 0

Step-by-step explanation:

2 1/3

=2*3+1/3

=7/3

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The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally distributed with standard deviation 0.
Klio2033 [76]

Answer:

1. the probability that giraffe will be shorter than 17 feet tall is equal to 0.1056

2. the probability that a randomly selected giraffe will be between 16 and 19 feet tall is equal to 0.8882

3. the the 90th percentile for the height of giraffes is 19.024

Step-by-step explanation:

To calculate the probability that a giraffe will be shorter than 17 feet tall, we need to standardize 17 feet as:

z=\frac{x-m}{s}

Where x is the height of the adult giraffe, m is the mean and s is the standard deviation, so 17 feet is equivalent to:

z=\frac{17-18}{0.8}=-1.25

Now, the probability that giraffe will be shorter than 17 feet tall is equal to P(z<-1.25). Then, using the standard normal distribution table, we get that:

P(z

At the same way, 16 and 19 feet tall are equivalent to:

z=\frac{16-18}{0.8}=-2.5\\z=\frac{19-18}{0.8}=1.25

So, the probability that a randomly selected giraffe will be between 16 and 19 feet tall is equal to:

P(-2.5

Finally, to find the the 90th percentile for the height of giraffes, we need to find the value z that satisfy:

P(Z

Now, using the standard normal distribution table we get that z is equal to 1.28. Therefore, the height x of the giraffes that is equivalent to 1.28 is:

z=\frac{x-m}{s} \\1.28=\frac{x-18}{0.8} \\x=(1.28*0.8)+18\\x=19.024

it means that the the 90th percentile for the height of giraffes is 19.024

4 0
3 years ago
Find the values of x and y. Write your answer in simplest form.
Bogdan [553]
X is 12 and y is 15 because of 3,4,5 triangles
7 0
3 years ago
Read 2 more answers
7.2 - 3 C equals 2 c - 2
dolphi86 [110]

Answer:

9.2/5= C

Step-by-step explanation:

7.2- 3C = 2C -2     First, add the 2 on the other side to isolate 2C on one side

+2                   +2

9.2 - 3C = 2C       Next, add 3C to the other side        

+3C   +3C

9.2 = 5C                Finally divide both sides by 5 to find the value of C

9.2/5= 5C/5

9.2/5 = C     by dividing by 5 the 5 cancels out and you're left with the C value

5 0
2 years ago
Please help this is my last question
Serggg [28]

Answer:

The ratio to water to flour is 3:2

The chef will need 2 cups of water? - im not sure

The ratio to water to flour is 3:2.25 - im not sure

The chef will need 1.5 cups of flour.

3 0
2 years ago
Read 2 more answers
Find the value of x in the given
Ierofanga [76]

Check the picture below.

Make sure your calculator is in Degree mode.

7 0
2 years ago
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