Answer:
Radius of Figure 12: 5.76
Step-by-step explanation:
To find the radius of figure 12, set up a proportion. (r = radius of figure 12)
25/16 = 9/r Cross multiply.
25r = 144 Divide 25 on both sides.
r = 5.76
The radius of figure 12 is 5.76 units.
2·x²+4
The sum is an answer to an addition problem and 2 times a number means to multiply by 2. That number is squared so you it's to the second power.
B