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<span>-x^2=4
x = -2i and x = 2i
-------------------------------</span>
Answer: The length of the loner side is 7 in. and the length of the shorter side is 6 in.
Step-by-step explanation: Given that a graphics designer is designing an advertising brochure for an art show. Each page of the brochure is rectangular with an area of 42 in squared and a perimeter of 26 in.
We are to find the dimensions of the brochure.
Let l and b represents the lengths of the longer side and shorter side respectively of each page of the brochure.
Then, according to the given information, we have

and

Substituting the value of l from equation (ii) in equation (i), we get

Since b is the length of the shorter side, so b = 6 in.
From equation (ii), we get

Thus, the length of the loner side is 7 in. and the length of the shorter side is 6 in.
Answer:
The average temperature of the atmosphere outside the airplane is
.
Step-by-step explanation:
The average temperature of the atmosphere outside an airplane flying at an altitude of 12600 meters is computed by evaluating the linear function:


The average temperature of the atmosphere outside the airplane is
.