Write an equivalent expression. Use an associative law.7 + (s + t)
A. (7 + s) + t
B. 7 + (t + s)
C. (s + t) + 7
D. 7(s + t)
Answer: A
Mathematics
You might also like to view...
Simplify the expression.sin(? - x) cos x + cos(? - x) sin x
A. ? B. sin(2x + ?) C. 0 D. 1
Mathematics
Solve the equation by completing the square.x2 - 14x + 45 = 0
A. 9, 5
B. 3
, -3
C. 40, 5
D. -9, -5
Mathematics
Convert the mass as indicated.64 kilograms to grams
A. 0.64 g B. 64,000 g C. 0.064 g D. 6400 g
Mathematics
Subtract.5857
A. 641 B. 645 C. 5645 D. 621
Mathematics