Answer:
y=-12, 0, 0,0,4
Step-by-step explanation:
They are all in order all you have to do is plug in the x value were the x is so like this
4(-2)-4 do it like that with every number from the x value then they are right
Answer:
72- no
36-yes
8- no
16- yes
81-yes
64-yes
48-no
Step-by-step explanation:
Answer:221 miles
Step-by-step explanation:
4.25 x 52= 221
Answer:
Step-by-step explanation:
X + 61° = 90° {right angle}
X = 90° - 61°
X = 29°
Since the sample size is less than 30, therefore we use
the t statistic.
Let us define the given variables:
N = sample size = 25
X = average score = 76
s = standard deviation = 12
99% Confidence interval
Degrees of freedom = n – 1 = 24
The formula for confidence interval is given as:
CI = X ± t * s / sqrt N
using the standard distribution table, the t value for DF
= 24 and 99% CI is:
t = 2.492
Therefore calculating the CI using the known values:
CI = 76 ± 2.492 * 12 / sqrt 25
CI = 76 ± 5.98
CI = 70.02, 81.98
Answer: The average score ranges from 70 to 82.
