84+83+92+80+95=434
434/5= 86.8
The correct answer is C
The answer is: (z - 6)(z + 15)
z² + 9z - 90 = z*z + 15z - 6z - 6*15 =
= (z*z + 15z) - (6z + 6*15) =
= z(z + 15) - 6(z + 15) =
= (z - 6)(z + 15)
Answer:
x = 8
Step-by-step explanation:
Step 1: Subtract 5x from both sides.
Step 2: Add 2 to both sides.
Step 3: Divide both sides by 2.
Step 4: Check if solution is correct.
Therefore, x = 8.
Answer:
26 cm
Step-by-step explanation:
Please give me brainliest ;)
18-2x=4x is given
18=6x is addition property of equality
3=x is I think division property of equality bc you divided to get x=3