Answer:
The 90% confidence interval for the mean is (170.87 , 189.13)
Step-by-step explanation:
Using the calculator we can easily calculate the 90% confidence interval for the mean, the given values are:
mean=180
sx : 38.5
n : 50
c - Level : 0.90
Then the output will be [170.87 , 189.13]
The lateral area is:
Al = (4) * (1/2) * (b) * (h)
Where,
b: base of the triangle
h: height of the triangle
Al = (4) * (1/2) * (2) * (root ((1) ^ 2 + (3) ^ 2))
Al = (4) * (root (1 + 9))
Al = 4raiz (10) units ^ 2
Answer:
Al = 4raiz (10) units ^ 2
To find out the surface area of a triangular pyramid you have to do 14 x 24 then divide by 2 which gives you 168 then you'll do 8 times 6.9 then divide by 2 which will give you 27.6 which when you add 168+27.6, you'll get 195.
Answer:
False
Step-by-step explanation:
The sum of the lengths of any two sides of a triangle must be greater than the length of the third side
Hours of work: 40....20....10....6
Payment per hours: 400....200...100...60
Or
Hours of work:2....4....6
Payment per hours:20....40....60. Luz earns 10 dollars per hour.