Answer:
B
Step-by-step explanation:
arc length = circumference × fraction of circle
= 84 ×
= 21 cm
Answer:
Graph B is correct
Step-by-step explanation:
Answer:
Step-by-step explanation:
we have

This is the equation of a vertical parabola open downward
The vertex represent a maximum
Convert the quadratic equation into vertex form
step 1
Factor -2

step 2
Complete the square


step 3
Rewrite as perfect squares
----> equation in vertex form
The vertex is the point (1,5)
Answer:
<h3>
x=144</h3>
Step-by-step explanation:
h²=65²-25²=4225-625=3600
h²=x*25
x=h²:25
x=3600:25
<h3>
x=144</h3>
1. x(2x^2-x+4)
2.-3(y-1)(y+2)
3.-(11w^2+18w-1)