Answer:
55
Step-by-step explanation:
Pull terms out from under the radical, assuming positive real numbers.
<h3>Hope it is helpful....</h3>
Answer:
x+y-10 -1
Step-by-step explanation:
if x is 3 and y is 6 then 3+6= 9
9-10=-1
Using the z-distribution, it is found that the 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).
We are given the <em>standard deviation</em> for the population, which is why the <em>z-distribution </em>is used to solve this question.
The information given is:
- Sample mean of .
- Population standard deviation of .
- Sample size of .
The confidence interval is:
The critical value, using a z-distribution calculator, for a <u>95% confidence interval</u> is z = 1.645, hence:
The 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).
A similar problem is given at brainly.com/question/16807970
Answer:63/2
Step-by-step explanation:
Just a rectangle + a triangle.
Area of the rectangle is 3*7=21
Area of triangle is 7 * 3/2 = 21/2.
Hence, our total area is 21 + 21/2, or 63/2.
Perimeter Formula:
Area Formula:
Set perimeter Formula equal to b:
Plug formula for be we just made above into the area Formula:
Solve for L (you'll have to use quadratic formula) then plug that back into the area Equation and solve for b.
Here's a link to where the problem has been explained before (they go into more detail than me).
https://brainly.ph/question/468631
lmk if you need any more help