Answer:
81 cm^2
Step-by-step explanation:
1. The area of a square is s^2, where s = length of side. In this case, s = 9.
Therefore, the area is 81 cm^2.
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
Answer:
x = 9.7
Step-by-step explanation:
tan 68° = 24/x
2.4751 = 24/x
x = 9.7
374 * 510= <span>190,740
Hope the helps you and everyone out!!!</span>
Answer:
= 105
Step-by-step explanation:
