Answer: 1. 1344
2. 25
3. 0.8
4. 292
Step-by-step explanation:
For 1 and 4 multiply the lengths by 8.
For 2 and 3 divide by 8.
Step-by-step explanation:
step 1. an example of difference of squares (dos) is (x + y)(x - y) = x^2 - y^2.
step 2. dos must have only 2 square rootable terms and a "-" between them.
step 3. 196x^2 - 121y^2 = (14x + 11y)(14x - 11y) works!
step 4. 5x^2 - 245 = 5(x^2 - 49) = 5(x + 7)(x - 7) works!
step 5. 27w^5 - 75w = 3w(9w^4 - 25) = 3w(3w^2 + 5)(3w^2 - 5) works!
step 6. x^4 - 100y^2 = (x^2 - 10y)(x^2 + 10y) works!
Answer: <u><em>There is a 3.1% chance of obtaining a sample with a mean of 85 or higher assuming that the true mean sales at the new location is still equal to or less than 75 bowls a day.</em></u>
Given:
Food Truck
Old location:
Sold = 75 bowls of noodle soup
New location:
Sold = 85 bowls of noodle soup
p-value = 0.031
<em></em>
<em>Interpretation:</em>
<em>Under the given circumstances and options, we state that there is a 3.1% chance of obtaining a sample that has a mean of 85 i.e. P(X=85) or in similar cases higher where we assume that the true mean sales at the new location is still equal to or less than 75 i.e. [P(X=75) ≤ P(X=85)] bowls a day.</em>
Answer:
b
Step-by-step explanation:
false because ƒ(x)=χ³
