irene thinks she has space for 45 inch wide book case. it turns out she only has space for 40 inch wide book case what is the percent error in irenes measurement

Apply the percent error formula:

(Experimental-Theoretical)/Theoretical

(45-40)/40

The percent error of her measurement was 12.5%

Step-by-step explanation:

Hope this helped

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58