Answer:square root 130
Step-by-step explanation:
The answer is b. 11.
You can find this by multiplying the two parenthesis together. In order to do this, you can use a multiplying process known as FOIL (First, Outer, Inner, Last), where you multiply parts of the parenthesis in this order to make sure you do so properly.
First Numbers:
2x * x = 2x^2
Outer Numbers:
2x * 6 = 12x
Inner Numbers:
-1 * x = -1x
Last Numbers:
-1*6 = -6
Now place them all in that order and simplify.
2x^2 + 12x - x - 6 ---> simplify x terms
2x^2 + 11x - 6
Since the middle term (the one with the x value) has a coefficient of 11, that gives us a b value of 11.
The second answer is the correct answer
Answer:
Diameter of the circle is twice it's radius D=2r.
Circumference of the circle is 2πr.
According to the above problem,
<u>2π(radius)</u>=20 inches
2(radius)=20/π=20/3.14
Diameter=<u>6.37 inches</u>
<h3><u>6.37 inches</u> is the right answer.</h3>
Answer:
5n
Step-by-step explanation:
(7^5 * 7^n) ^ 4 = (7^11/7^n)^3
7^(20 + 4n) = 4.7^15 / n^3
= 20/4 = 5n and 15/3 = 5n
Answer 5n
