Answer:
Yup the answer is 15!
Step-by-step explanation:
(3x + 4)^(1/2) = 7
3x + 4 = 49
3x = 45
x = 15
Answer:
The average rate of change for this sequence is 1
Step-by-step explanation:
The average rate of change is calculated as the slope of the line joining the end points of the sequence.
In this case the end points are;
(-.5, 2.5) and (1,4)
We simply calculate the slope using the gradient formula;
Change in y / change in x
(4 - 2.5)/(1 - -0.5) = 1
Answer:
C.
normal distribution
Step-by-step explanation:
The Sampling Distribution of the Sample Proportion. If repeated random samples of a given size n are taken from a population of values for a categorical variable, where the proportion in the category of interest is p, then the mean of all sample proportions (p-hat) is the population proportion (p)
Sample proportion would be normal with mean = p and variance = pq/n where q = 1-p and n= the sample size
The condition is that both np and nq must be greater than 10
Hence we can take that this will be normal provided np>10 or p>1/4 and q >1/4
i.e. p lies between 1/4 and 3/4
C.
normal distribution (assuming conditions are satisfied)
Step-by-step explanation:
Let x be the number.
Then the algebraic expression will be x^2 + 11x.
