Insert parentheses as needed in the expression in order to make it equal to 0. More than one set of parentheses may be needed.72 ÷ 4 + 3 - 7
A. 72 ÷ 4 + 3 - 7
B. 72 ÷ (4 + 3) - 7
C. (72 ÷ 4) + 3 - 7
D. 72 ÷ 4 + (3 - 7)
Answer: B
Mathematics
You might also like to view...
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 7
B. 
C. 
D. 
Mathematics
Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.
b = 9, c = 15; find a
A. 14 B. 12 C. 15 D. 11
Mathematics
Plot and label the points indicated by the coordinate pairs.A(-2, 0), B (0, 3)
A. 
B. 
C. 
D. 
Mathematics
Simplify.
-3
A. 
B. - 
C. 
D. - 
Mathematics