Answer:
The answer for the first equation is,
X = 6, -4
The answer for second equation is,
X = 9,2
The sequence is incrementing by

Therefore, the sixth number is

Which is 64.
Answer:
0.025
Explanation:
Divide the percentage by 100 to convert it to decmals.
for example 20%=
20
100
=.2
30%=
30
100
=
.3
2.5%=
2.5
100
=
.025
Answer:
There is sufficient evidence that fuel economy goal has been attained.
Step-by-step explanation:
The hypothesis :
H0 : μ < 30.2
H1 : μ ≥ 30.2
The test statistic :
(xbar - μ) ÷ (s/√(n))
xbar = 32.12 ; s = 4.83 ; n = 50
Test statistic :
(32.12 - 30.2) ÷ (4.83/√(50))
1.92 ÷ 0.6830651
T = 2.811
Using the Pvalue from test statistic calculator :
Since we used the sample standard deviation, we use the T distribution
df = n - 1 = 50 - 1 = 49
Pvalue(2.811, 49) ; one tailed = 0.00354
At α = 0.05
Pvalue < α ; then we reject the null and conclude that there is sufficient evidence that fuel economy goal has been attained