The number is 454.
This is because since the ones digit is 4 and the hundreds digit is the same as the ones digit, the hundreds digit is 400.
400 + 50 + 4 = 454
Answer:
z(critic) = -2.33
Step-by-step explanation:
In this case this is a population proportion test because the observations are simple random sampled and there is a fixed number of trials with only two possible options. Also, n is big enough.
Since this is a population test, the test statistic is z.
Also, this is a one tailed tast because the claim is that the population proportion is less than 0.57.
In this case, for a 0.01 significance level, z(critic) = -2.33
So 51+51=102 and then 10+10+10+10=40, and 102+40=142. So they will need to take 2 buses and 4 vans.
hope I helped
i'm sorry but can you put in more details as to what each item costs, if it is just variables then it should be something like b times the amount bought plus c times the amount bought. without the costs i cannot actually give you how much she spent
Answer:
706.5m^2
Step-by-step explanation:
The sign is a circle
Area of a circle is (pi)r^2
d = 30 in -> r = d/2 = 30/2 = 15
Area = 3.14 x (15)^2 = 706.5m^2
