Answer:
720
Step-by-step explanation:
i used a calculator box = 12 gizoms 1 package =10 boxes
12x10 = 120. 120 x 6 = 720
Answer:
<ABC = 30°
Step-by-step explanation:
Vertical angles are equal
So
4x+2 = 7x - 19
-7x + 4x = -19 - 2
-3x = -21
x = 7
<ABC = 4(7) + 2 = 28 + 2 = 30
<ABC = 30°
Answer:
You can build 1296 different home theater systems.
Step-by-step explanation:
Fundamental counting principle:
States that if there are p ways to do a thing, and q ways to do another thing, and these two things are independent, there are p*q ways to do both things.
There are:
6 different TVs
12 types of surround sound systems.
18 types of DVD players.
How many different home theater systems can you build?
The components are independent, so, by the fundamental counting principle:
6*12*18 = 1296
You can build 1296 different home theater systems.
Answer:
C.
Step-by-step explanation:
Look at the diagonal.
Answer:
The point estimate for the proportion is p = 0.4725
The 95% confidence interval for the proportion of non-fatal accidents that involved the use of a cell phone is (0.4236, 0.5214).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
For this problem, we have that:
Point estimate
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the proportion of non-fatal accidents that involved the use of a cell phone is (0.4236, 0.5214).
