The discriminant is <span>−<span>8
</span></span>f<span>(x)</span>=−3<span>x2</span>−2x−1
is of the form <span><span>a<span>x2</span>+bx+c</span>
</span>,with <span><span>a=−3</span>
</span>, <span><span>b=−2</span>
</span> and <span>c=−<span>1</span></span>
Answer:
The least amount of fabric are 22 square feet
Step-by-step explanation:
we know that
The surface area of a rectangular prism is given by the formula

where
B is the area of the base
P is the perimeter of the base
H is the height of the prism
Let
L ---> the length pf the prism
W ---> the width of the prism
H ---> is the height of the prism
Let

Find the area of the base

Find the perimeter of the base

Find the surface area

therefore
The least amount of fabric are 22 square feet
Answer: 
Step-by-step explanation:
Given : 

Significance level : 
Critical value : 
Now, the confidence interval for difference of two population mean :-

Hence, the 95% confidence interval for the difference
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I believe it would be the first one: More grandparents prefer using a hard copy than a digital copy. The reason is because the number of people who prefer hard copies is the largest number which wouldn’t make sense for the second or third answer choice.