Answer:
(2z)^3 or 8z^3
Step-by-step explanation:
"double z:" 2z
"raise the result (2z) to the third power:" (2z)^3 or 8z^3
- Correct. This is the distance around the circle, aka the perimeter.
- False. Going from center (O) to the point A is the radius, which is half the diameter. Answer: radius
- Correct. The diameter is a chord that goes through the center. A chord is any segment where the endpoints are on the circle's edge.
- Correct. There are three radii shown in this diagram. The other radius is OC. Segment BC is a chord that is neither a diameter nor a radius.
In short, all you need to do is change "diameter" to "radius" in question 2. Other than that, you're perfect.
Unless unusually unusual unification under
If b+2(a+1) = c, find the value of a+1
Subtract b from both sides: b+2(a+1) - b = c - b
2(a+1) = c - b
Divide both sides by 2:
a+1 = (c - b) /2