Answer:
Options A and B
i.e., A. 4(3) and B.
Step-by-step explanation:
Like radicals are similar to like terms.
For example,
x, 2x, -10x, , 7.3x are like terms.
are some more examples of like terms.
Similarly, like radicals are:
etc.
Hence, from the given options, like radicals to are:
A. and B.
Answer: 0.0793
Step-by-step explanation:
Let the IQ of the educated adults be X then;
Assume X follows a normal distribution with mean 118 and standard deviation of 20.
This is a sampling question with sample size, n =200
To find the probability that the sample mean IQ is greater than 120:
P(X > 120) = 1 - P(X < 120)
Standardize the mean IQ using the sampling formula : Z = (X - μ) / σ/sqrt n
Where; X = sample mean IQ; μ =population mean IQ; σ = population standard deviation and n = sample size
Therefore, P(X>120) = 1 - P(Z < (120 - 118)/20/sqrt 200)
= 1 - P(Z< 1.41)
The P(Z<1.41) can then be obtained from the Z tables and the value is 0.9207
Thus; P(X< 120) = 1 - 0.9207
= 0.0793
Hi there!
In order to solve this problem, we can use a couple proportions. First, we'll use this proportion: 1/5 = x/150. Now, cross-multiply: 5x = 150. Then, divide: x = 30. This means that the spinner will hit the section labeled 5, 30 out of 150 times. Now we need to find the percentage. To find the percentage, we'll use this proportion: 30/150 = x/100. Cross-multiply: 150x = 3000. Divide: x = 20. This means that the spinner will land on the section labeled 5, 30 out of 150 times or 20% of the time.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
Answer:
The probability that sum of numbers rolled is a multiple of 3 or 4 is: .
Step-by-step explanation:
The sample space for two fair die (dice) is given below:
From the above table:
Number of occurrence where sum is multiple of 3 = 12
Number of occurrence where sum is multiple of 4 = 9
Total number in the sample space = 36
probability(sum is 3) = 12/36
probability(sum is 4) = 9/36
probability(sum is 3 or 4)