Answer:
10 problems
Step-by-step explanation:
4/1 = 8/x
solve for x
x = 8/4 = 2
2 is the number of problems she still has to do
now add that to 8 to get total number of problems
8 x 7 x 10 x 6 = 3360 ft . I believe this should be the answer.
Add 9 to both sides to get the x-value alone
x-9=-5
x=4
The amount A that Patrik will cash is given by the compound interest formula:
A = C (1 + i)ⁿ
where:
C = initial amount of money
i = interest, written as a decimal number
n = number of periods
In our case, the interest is compoundend quarterly, but we have a time in years. Therefore, we need to transform years in quarters:
n = 15×4 = 60
Now, we can apply the formula:
A = 400·(1 + 0.035)⁶⁰
= 3151.24$
Hence, the correct answer is B) 3151.24$
Answer:
b) B and D and c) A and C
Step-by-step explanation:
The hypotheses would be:
(Right tailed test at 5% level)
Sample proportions are
Sample A B C D
Success 31 34 27 38
Proportion p 0.775 0.85 0.675 0.95
Std error
(sqrtpq/n) 0.066 0.056 0.074 0.034
p diff
p-0.75 0.025 0.10 - 0.075 0.20
Z stat
p diff/SE 0.0757 1.77 1.01 5.80
p value 0.469 0.038 0.156 0.000001
we find that p value is more smaller than alpha, the more accurate the alternate hypothesis.
b) Only B and D provide against the null. Because p <0.05
c) A and C provide no evidence for the alternative because p >0.05