Answer: 49π inches²
Step-by-step explanation:
The formula for the circumference of a circle = 2πr
Since the circumference is 14π, we have to find the radius in order to solve the area.
2πr = 14π
r = 14π/2π
r = 7
Since area = πr²
= π × 7 × 7
= 49π inches²
Answer: 8x + 7 = ?
Step-by-step explanation: There isn't anything on the other side so all I can do is simplify the left.
(I'm assuming the first term is 10 b squared)
The first thing you need to know before diving in is to find the factors of 10 and 3.
10 = 1x10, 2x5
3 = 1x3
Next you will have to find a combination that when multiplied the middle term is 17. In this case it is 2x5 and 1x3. We can test it out by setting it up in binomials.
(2b + 3)(5b + 1) = 10b squared + 2b + 15b + 3 = 10b squared + 17b + 3.
The reason why the binomials are additions is because both the middle and end terms are positive.
Hope this helps!