Answer:
<h2>(a) 5,050 psi.</h2><h2>(b) 5,051.3 psi.</h2><h2>(c) 5,180 psi.</h2><h2>(d) 4,920 psi.</h2>
Step-by-step explanation:
The given function is
Where 
represents the accelerated strength in psi, and 
represents 28-day standard-cured strength in psi.
Part a is about finding the y-value for 
Therefore, the expected value of 28-day strength when accelerated strength is 2,500, is 5,050 psi.
Part b is about the y-value for 
Part c is about the y-value for 
Part d is about the y-value for 
A fraction that is greater then 1/2 but less then 3/4 is 5/8.
To write a fraction as a percent, first we must convert it into a decimal. We do so by dividing the numerator by the denominator.
13/50 = 0.26
Converting a decimal to a percentage is easy. Because a percentage is out of 100, we multiply the decimal by 100 to get the percent.
0.26 * 100 = 26
Therefore, 13/50 = 26%
Add the component i apart and the compents j apart
