Answer:
X+2
Step-by-step explanation:
Answer:
a. 1
b. any number to the zero power is just the product of no numbers at all, which is the multiplicative identity, 1
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that the sample mean for a random sample of 100 cars is 27.2 miles and assume the standard deviation is 2.4 miles.
H0: x bar = 25.9
Ha: x bar ≠ 25.9
(Two tailed test at 95% confidence)
Alpha =0.05
The hypothetical mean is 25.900
The actual mean is 27.200
The difference between these two values is 1.300
The 95% confidence interval of this difference:
From -3.462 to 6.062
t = 0.5417
df = 99
standard error of difference = 2.400
The two-tailed P value equals 0.5893
Since p >0.05 this difference is considered to be not statistically significant.
Answer:
The perimeter of the trapezoid is
Step-by-step explanation:
we know that
The perimeter of the trapezoid is the sum of its four side lengths
so
In this problem
the formula to calculate the distance between two points is equal to
we have
step 1
Find the distance QR
substitute the values in the formula
step 2
Find the distance RS
substitute the values in the formula
step 3
Find the distance ST
substitute the values in the formula
step 4
Find the distance QT
substitute the values in the formula
step 5
Find the perimeter