Answer:
=9x2+2x−5
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1.You have that the measure of the <span>leans a 4-foot and the angle between the bottom of the broom and the floor is 72°.
2. Then, you have:
Sin(72°)=x/4
When you solve for x, you obtain the following result:
4Sin(72°)=x
x=3.8 feet
The answer is: 3.8 feet</span>
Remark
What you have to do to learn the difference between recursive and explicit is try try the first 3 or 4 terms to see what you have and how you did it.
a1 = - 3
a2 = - 3 (1/8) = -3 / 8
a3 = (a2) (1/8)
a3 = (-3/8) * 1/8
a3 = (- 3/64)
a4 = a3 (1/8)
a4 = -3/64 * 1/8
a4 = - 3 / 512
Take a good look at a4. What do you notice? No matter what, you are always multiplying by 1/8. That means that A and D are both wrong which they would have you raising by 3 or - 3 to some power.
So which one of B and C is correct?
The answer is which ever one will not change sign from what it started out with. All four terms are minus.
In B the term is multiplied by plus 1/8. That will not change the sign of the next term.
So the answer is
a_n = - 3 * (1/8)^(n - 1) <<<<< answer
Commutative property of addition is given by : a+b = b+a , where a and b can be any expression of real numbers. It basically changes the order of the so that simplification of any expression becomes easier.
but it is with the stuff that you have on your computer or paper
I believe that the correct answer is B
