Answer:
To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of each triangle is equal to one-half the area of the parallelogram.
Step-by-step explanation:
Answer: 
Step-by-step explanation:
You need to analize all the information given in the exercise.
You know that the actual height of the T-rex on the projector lens is the following:

The height of the projected T-rex is:

Make the conversion from meters to centimeters:

Therefore, the scale factor will be:

Finally, you must substitute values into the equation and then you must evaluate in order to find the scale factor of the projection. You get that this is:

There would be 8 in all and each roll would be 6 inches
Complete Question
The complete question is shown on the first uploaded image
Answer:
The null hypothesis is rejected this means that 
The 95% confidence interval is
Step-by-step explanation:
From the question we are told that
The standard deviation is s= 0.0001
The sample size is n = 25
The sample mean is 
The population mean is 
The null hypothesis is 
The alternative hypothesis is 
The test statistics is mathematically represented as


So the p-value from the z-table is mathematically represented as


seeing that
we reject the null hypothesis
The critical value of
obtained from the normal distribution table is

The margin of error is mathematically represented as

=> 
=> 
The 95% confidence level is mathematically represented as

=> 
=>
Answer:
Dude the hard hope someone help
Step-by-step explanation: