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const2013 [10]
3 years ago
15

What is the value of x in the equation

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
3 0

Well I solved it and This is what i got

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Can someone help me plsssss
hoa [83]

Answer:

Sorry I don't know this.

Step-by-step explanation:

8 0
3 years ago
The average age of a breed of dog is 19.4 years. If the distribution of their ages is normal and
Fantom [35]

We have been given that the average age of a breed of dog is 19.4 years. The distribution of their ages is normal and  20% of dogs are older than 22.8 years. We are asked to find the standard deviation.

Since 20% of dogs are older than 22.8 years, so 80% of dogs are younger than 22.8.

We will use z-score formula to solve our given problem.

z=\frac{x-\mu}\sigma}, where,

z = z-score,

x = Random sample score,

\mu = Mean,

\sigma = Standard deviation.

Now we will use normal distribution table to find the z-score corresponding to 80% or 0.80.

z-score corresponding to 0.80 is 0.845.

Upon substituting our given values in z-score formula, we will get:

0.845=\frac{22.8-19.4}{\sigma}

\sigma=\frac{22.8-19.4}{0.845}

\sigma=\frac{3.4}{0.845}

\sigma=4.0236

\sigma\approx 4.02

Therefore, the standard deviation is approximately 4.02 years.

6 0
3 years ago
4x+2x+2=3x-7 , i need help with combining like terms because my 8th grade math teacher is making it harder than it is and show w
Semenov [28]
I hope this helps you out a bit!

3 0
3 years ago
Please Help ME! Find the value of x
Masteriza [31]
2X=15
X= 15/2
=7.5
I guess this is the answer
5 0
3 years ago
What is the answer to number 2
Reptile [31]
A. 3n. hope that helps.
4 0
3 years ago
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