Step-by-step explanation:
draw the net
there are 3 squares, each with a L = 5m and W = 1.5 +1.5m
2 triangles with a base of 1.5 + 1.5 and a height of 2.6m
Area of a rectangle = L x W
" " Triangle = 0.5 x b x h
so youd write and solve 3 rectangles x ( 5 m x 1.5 + 1.5) + 2 triangles x (0.5 x (1.5 +1.5) x 2.6m)
also look up the equation for surface area for this shape. Should give you the same thing. This method makes it more intuitive
For the function: y = x² + 4
For the function: x² - 4
- x intercept: (-2, 0) and (2, 0)
For the function: 1 - x²
- x intercept: (1, 0) and (-1, 0)
Conclusion:
green line = x² + 4; blue line = x² - 4; black line = 1 -x²
Answer:
a) P(X≥143)=0
b) This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).
Step-by-step explanation:
If we use the normal approximation to the binomial distribution we have the following parameters (mean and standard deviation):
Then, we can calculate the probability of X being equal or more than 143 using the z-score:
This contradicts the study as getting a sample with this proportion is almost impossible (if the proportion of 68% is true).
Answer: -18v+9w+15
Step-by-step explanation:
1. -3(6v)-3(-3w)-3(-5)
2.-18v+9w+15