Perform the indicated subtraction.-0.32 - (0.39)
A. -0.1248
B. -0.71
C. -0.07
D. 0.03
Answer: B
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Solve the problem.An office desk costs $6000. After 5 years, it depreciates to a value of $3500. Assuming linear depreciation, answer the following.(i) Write a linear equation that gives the value of the desk, y, in terms of the number of years after it was purchased, x.(ii) Using the equation found in part a, find the value of the desk after 7 years.(iii) After how many years would the desk have no value?
A. (i) y = 6000 - 500x (ii) $3500 (iii) 12 years B. (i) y = 6000 - 400x (ii) $2500 (iii) 12 years C. (i)y = 6000 - 500x (ii) $2500 (iii) 12 years D. (i) y = 6000 + 500x (ii) $9500 (iii) 20 years
Solve this equation.-18m = 54
A. m = 0 B. m = -36 C. m = -3 D. m = 3
Find the determinant of the matrix and determine if the matrix is invertible 
What will be an ideal response?
Use the multiplication principle to solve the problem.How many different 5-digit sequences can be formed using the digits 
if repetition of digits is allowed?
A. 59,049 B. 40 C. 30 D. 32,768