Answer:
A shifts the function up or down k units
Step-by-step explanation:
y = f(x) + k
if k>0 this will shift the function up k units
if k<0 it will shift the function down k units
2(-3)2 -5(4). -12 -20= -32. It's this because you plug -3 and 4 into x and y. Then if you answer it out it equals -32
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:
1, 216
2. 576
Step-by-step explanation:
meth