The pattern is:
( a - b )² = a² - 2 a b + b² ( square of last term of binomial - the missing term)
x² - 2 · 8 · x + 8² = x² - 16 x + 64 = ( x - 8 )²
The missing term is: 64
First, find the radius
2
r=circumference
r=18
cm
-------------
2
r=9 cm
Now, we can just use the circle area formula to solve
=
=81
=<span>
254.469 </span>
cm^2
Combine like terms:
-3p + 11 = ?
4p + (-7p) = 4p -7p = -3p
9 + 2 = 11
Answer:
Step-by-step explanation:
A graph shows the only real zero to be at x = 3.
Factoring that out gives the quadratic whose vertex form is ...
y = (x -10)² +1
The roots of this quadratic are the complex numbers x = 10 ± i.
_____
For y = (x -10)² +1, the zeros are ...
(x -10)² +1 = 0
(x -10)² = -1 . . . . . . . . . . subtract 1
x -10 = ±√(-1) = ±i . . . . .take the square root
x = 10 ± i . . . . . . . . . . . . add 10
Answer:
Step-by-step explanation:
Many calculators use "E" to signify "×10^( )". Thus ...
... 1.3E-2 = 1.3×10^(-2)
This number in scientific notation is equivalent to the standard form number ...
... 1.3×0.01 = 0.013