3x-24=x+10
3x-x=24+10
2x=34
x=34:2=17
Answer: One sample z test for means
Step-by-step explanation:
From the information given, the sample size is large. It is greater than 30. Again, the population standard deviation is given. This means that the test statistic would be the z score which is determined by the formula
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = population standard deviation
The probability value would be determined from the normal distribution table.
Therefore, the hypothesis test that should be used is
One sample z test for means
Step-by-step explanation:
1/2*216*height
2/216=18
so height =18.
Answer:
36 square feet
Step-by-step explanation:
area of the yard: 12×12=144
patio should be 1/4 of the yard, so 144:4=36 is the area of the patio
