Answer:
standard deck has 52 cards. probability of king is 4/52 and probability of a queen is 4/52, so 4/52 + 4/52 = 8/52=2/13
Step-by-step explanation:
Complete Question
The complete question is shown on the first uploaded image
Answer:
The confidence level interval is 
Step-by-step explanation:
The sample size is 
The number planning to increase workforce is 
The confidence level is
%
The value of proportion for a plus 4 method is

substituting values


The z-critical value at confidence level of 98% is

This values is obtained from the standard normal table
The confidence level interval can be mathematically represented as

substituting values


=> 
Answer:
9a + 18
Step-by-step explanation:
so the first step is to evaluate the value of f(2).

Now that we have this value we can use the slope formula (y2 - y1) / (x2 - x1) where y2 is f(a), y1 is 29, x2 is a, and x1 is 2

Now from here we can use long division to simplify it further

Answer: B) one solution
Reason: if we solve for the sides of the equation by putting like terms together we get that x = 3
There is no solution when the numbers don’t equal each other, take for instance 1 = 2
It has infinite solutions when the numbers are equal to each other like
1 = 1
It has one solution when the x value is equal to something like x = 9
I also worked out the equation on paper, so you could get a more visual way of how I solved it.
Hope this helps