Answer:
ok so first we divide 54 by 6 and get 9 so now we now that we have two sixes and two 9s for our edges now we add 6 plus 9 plus 6 plus 9 and we get 30
The margin of error can be calculated using the t
statistic. The formula for margin of error is given as:
<span>Margin of error = t * s / sqrt (n) ---> 1</span>
Where,
t = the t score based on the given confidence level and
degrees of freedom
n = number of samples = 21
s = standard deviation = 7.1
Degrees of freedom = n – 1 = 21 – 1 = 20
Based on the standard probability tables for t, the t
score is:
t = 0.860
Substituting into equation 1:
margin of error = 0.860 * 7.1 / sqrt (21)
margin of error = 1.33
The range is:
range = 30.1 ± 1.33
range = 28.77, 31.43
Therefore the commute time to work is between 28.77 minutes
and 31.43 minutes.
Answer:2 is equal to 18/1 which is 36 divided by 2
Step-by-step explanation:
Answer:
35/80
u want to find a number that is proportional to 35/80, then all u need is a number that is equivalent...another words, if it is proportional, it is an equivalent fraction to 35/80.
there can be several answers to this...such as 35/80 reduces to 7/16...so 7/16 is proportional....or if u multiply numerator and denominator by the same number, u will find a proportional number...
example :
35/80 * 2/2 = 70/160...this is proportional
35/80 * 3/3 = 105/240...this is proportional
35/80 * 4/4 = 140/320...this is also proportional
and so on....
so without giving us any answer choices, there can be many numbers to choose from
Answer:
Y=-4x-5
Step-by-step explanation:
-21=-4(4)+b
-21=-16+b
b=-5
y=-4x-5