(c) By how much can we expect 28-day strength to change when accelerated strength increases by 80 psi? When accelerated strength increases by 1 psi, the expected change in 28-day strength is ₁ = 1.2. Therefore, when accelerated strength increases by 2 psi, the expected change in 28-day strength (in pounds per square inch) is 2₁ = psi. We can follow this model to see that the expected change in 28-day strength is equal to ₁ = 1.2 times the increase in accelerated strength. Therefore, the expected change in 28-day strength (in pounds per square inch) for an increase of 80 psi in accelerated strength is equal to 1.2([ Submit Skip (you cannot come back) psi.
(c) By how much can we expect 28-day strength to change when accelerated strength increases by 80 psi? When accelerated strength increases by 1 psi, the expected change in 28-day strength is ₁ = 1.2. Therefore, when accelerated strength increases by 2 psi, the expected change in 28-day strength (in pounds per square inch) is 2₁ = psi. We can follow this model to see that the expected change in 28-day strength is equal to ₁ = 1.2 times the increase in accelerated strength. Therefore, the expected change in 28-day strength (in pounds per square inch) for an increase of 80 psi in accelerated strength is equal to 1.2([ Submit Skip (you cannot come back) psi.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.7: Applications
Problem 14EQ
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(c) By how much can we expect 28-day strength to change when accelerated strength increases by 80 psi?
When accelerated strength increases by 1 psi, the expected change in 28-day strength is ₁ = 1.2. Therefore, when accelerated strength increases by 2 psi, the expected change in 28-day strength (in
pounds per square inch) is 20₁
psi.
We can follow this model to see that the expected change in 28-day strength is equal to P₁ = 1.2 times the increase in accelerated strength.
Therefore, the expected change in 28-day strength (in pounds per square inch) for an increase of 80 psi in accelerated strength is equal to 1.2
=
Submit Skip (you cannot come back)
or
psi.
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