Answer:
D. (-∞,4]
Step-by-step explanation:
The range is the y values
The lowest y values is negative infinity
The highest y values is 4
( - inf, 4]
We use the parentheses since we cannot get to negative infinity, the bracket since we reach 4
Ok so
t=number of text messsages
p=number of picture messages
total number is 33
t+p=33
if text is 0.18 per pic and picture is 0.45 per text
total cost is 8.3
0.18t+0.45p=8.3
times 100 both sides for ease
18t+45p=830
we now have 2 equations
t+p=33
18t+45p=830
multiply first equation by -18 and add to second equation
18t+45p=830
<span>-18t-18p=-594 +</span>
0t+27p=236
27p=236
divide both sides by 27
p=8.740740740740744
this is impossible becasue you can't send 0.740740740740744 of a message so you did a mistype somewhere
Answer:
1/2 of the jelly beans were either red or green.
Step-by-step explanation:
Of the 12 jellybeans, 1/3 were red, and 1/6 were green; this means the number of red jellybeans were
and the number of green jellybeans were
.
This means that we have 4+2=6 jellybeans that are either red or green. Now this 6 is
fraction of the total jelly beans.
Therefore 1/2 of the jellybeans were either red or green.
<em>The appropriate number of red and green jellybeans are colored in the figure attached.</em>
Answer:
Degree of freedom = 63
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 64
Sample mean = 1400
Sample standard deviation = 240
We need to make a 95% confidence interval.
We use the t-statistic for the same.
Degree of freedom:
- It is the maximum number of logically independent values that have the freedom to vary, in the data sample.
Degree of freedom for reading the critical values of t-statistic is
Thus, the degree of freedom is 63.