Simplify the algebraic expression.-3(x + 7) + 9x
A. 6x + 21
B. 6x - 21
C. -12x - 21
D. 12x + 21
Answer: B
You might also like to view...
Determine the exact amount of dextrose and NaCl in 500 mL D5 0.22S.
A. 1.1 g dextrose; 25 g salt B. 25 g dextrose; 1.1 g salt C. 2.5 g dextrose; 1.1 g salt D. 5 g dextrose; 0.22 g salt
Determine whether the trinomial is a perfect square trinomial.36x2 - 96xy + 64y2
A. Yes B. No
Solve.Points A and B are on opposite sides of a lake. A point C is 
from A. The measure of angle BAC is 
and the measure of angle ACB is determined to be 37°20'. Find the distance between points A and B to the nearest meter.
A. 53 m B. 28 m C. 55 m D. 26 m
Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 + y2 =49-6x - 4y =7
What will be an ideal response?