Answer:
the roots are n = 1 + √15 and n = 1 - √15
Step-by-step explanation:
In this case I would immediately rewrite n² - 2n - 5 = 10 as
n² - 2n = 10 + 5 = 15.
To complete the square: Identify the coefficient of n (it is -2). Halve that, obtaining -1, square this result, and then add the outcome (1) to and subtract the outcome (1) to n² - 2n:
n² - 2n <em>+ 1 - 1 </em> = 15
Next, rewrite n² - 2n + 1 as the square of a binomial:
(n - 1)² = 15
Finally, take the square root of both sides:
n - 1 = ±√15
so that the roots are n = 1 + √15 and n = 1 - √15
Answer:
7g+14h
Step-by-step explanation:
hope it helped you
Height of cylinder is 2.285 centimeters
Diameter = 14 cm
Radius = 7 cm (14/2)
Volume = 112 pi
Volume of cylinder = pi(radius)^2 h
112pi = pi(7)^2 h
Divide both sides
112 = 49 h
h = 112/49
h = 2.285 centimeters
Answer:
volume of the cone = 247.98 cubic meter
Step-by-step explanation:
Height of the cone= 11.7 m
Circumference= 9 m
Radius= 9/2= 4.5 m
Volume of the cone;
=
As, 
Putting the values in the formula:
Volume of the cone is:
The volume of the cone is 247.98 cubic meter
Hi!
<h3>To find the prime factorization of a number, keep dividing by the smallest factor that goes into it. </h3>
27/3 = 9
9/3 = 3
3/3 = 1
<u>3 · 3 · 3 = 27</u>
<h2>The answer is C. 3 · 3 · 3</h2>
Hope this helps! :)
-Peredhel
