Answer:
the answer is A. because a 1/2 inch is 2 feet there is about 2 and 1/2 of an inch so if you add that, that will be 9 feet
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
68+48=116
116÷16=7.24 (wrong)
116÷12=9.7 (wrong)
116÷4=29 (lowest even)
116÷2=58 (highest even)
If I'm wrong, let me know
Answer:
680 cm
Step-by-step explanation:
There are 100 cm in 1 m, so multiply 6.8*10, which equals 680
hope this helps :)
Answer:
Step-by-step explanation:
We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean
For the null hypothesis,
H0: µ = 5000
For the alternative hypothesis,
H1: µ > 5000
Since the population standard deviation is given, z score would be determined from the normal distribution table. The formula is
z = (x - µ)/(σ/√n)
Where
x = sample mean
µ = population mean
σ = population standard deviation
n = number of samples
From the information given,
µ = 5000
x = 5430
σ = 600
n = 40
z = (5430 - 5000)/(600/√40) = 4.53
Looking at the normal distribution table, the probability corresponding to the z score is < 0.0001
Since alpha, 0.05 > than the p value, then we would reject the null hypothesis. Therefore, at a 5% level of significance, it can be concluded that they walked more than the mean number of 5000 steps per day.
Let x = the number of students at Taft high school
5x-100 = the number of students at Jefferson high school
if x =300 than 5(300)-100=1500-100=1400 students at Jefferson high school
