Answer: C and D
15 + (5+21) = 41
c.15 + 26 = 41
d. 20 + 21 = 41
Observe the figure below.
We have to identify the ray that is opposite to BD.
Ray is defined as a line with a start point but no end point (it could go to infinity). It may happen that a ray starts from a point and might come across another point but has no end point. If a line ends at two distinct points we call it a line segment.
Now, in the given image we can see that there is a ray passes through the point B and D called BD. Now a ray whose direction is opposite to that of the ray BD can be given as BA.
Since the point of start is B, so the ray in the opposite direction has to start from the point B and only ray BA seems in accordance with the given image.
If you meant loads instead of seconds then this is what you get:
Part A:
A(x)= 20x+8
B(x)= 24x+4
Part B:
Company A. It cost $108 for 5 loads, while it cost $124 for 5 loads using company B
Part C:
For 9 loads, you save $32 when using company A vs company B.
Answer:
Yes, the normal curve can be used as an approximation to the binomial probability.
Step-by-step explanation:
Let <em>X</em> = number of students that pass their college placement exam.
The probability that a given student will pass their college placement exam is, P (X) = <em>p</em> = 0.53.
A random sample of <em>n</em> = 127 students is selected.
The random variable <em>X</em> follows a Binomial distribution.
But the sample size is too large.
A Normal approximation to Binomial can be used to approximate the distribution of proportion <em>p</em>.
The conditions to be satisfied are:
- <em>np</em> ≥ 10
- <em>n</em>(1-<em>p</em>) ≥ 10
Check whether the conditions are satisfied as follows:
Both he conditions are satisfied.
Thus, a normal curve can be used as an approximation to the binomial probability.