Atmospheric pressure, measured in pounds per square inch (psi) is the force exerted by earth's atmosphere over a given area. the atmospheric pressure, p, exerted on an airplane flying at an altitude of a miles above sea level can be approximated by the model shown below. what is the best interpretation of 0.8^a in this equation? p = 14.63 - 0.8^a a. if the airplane reaches the outer extent of the earth's atmosphere, the atmospheric pressure will be 0.8 psi. b. if the airplane is at sea level, the atmospheric pressure will be 0.8 psi. c. for each mile that the altitude increases, the atmospheric pressure decreases 20%. d. for each mile that the altitude increases, the atmospheric pressure increases 20%.

Option D.

For each mile that the altitude increases, the atmospheric pressure increases 20%

Step-by-step explanation:

Given that atmospheric pressure, measured in pounds per square inch (psi) is the force exerted by Earth's atmosphere over a given area. The atmospheric pressure, p, exerted on an airplane flying at an altitude of a miles above sea level can be approximated by the model shown below.

Or

0.2231 (0.8^a) = dp/da

Since positive sign and approximately equals 20% we have

Option D.

For each mile that the altitude increases, the atmospheric pressure increases 20%

answer: $34.31

step-by-step explanation:

$11.99 x 3 = $35.97

$35.97 - 10% = $32.37

$32.37 + 6% = $34.31

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1