Answer:
7/22 or 0.31818...
Step-by-step explanation:
have a good day!! :)
Answer:
10
Step-by-step explanation:
By the geometric mean theorem,
- 4/a = a/25
- 100=a² (cross multiply)
- a=10 (square root both sides and take the positive solution)
Answer:
f(x) = - 2x³ - 11x² + 12x + 36
Step-by-step explanation:
given that x = a and x = b are the roots of a polynomial then
(x - a) and (x - b) are it's factors and the polynomial is the product of the factors
here x = -2 ( repeated ) and x = 3 (repeated), hence the factors are
(x + 2)² and (x - 3)² → the square denotes a repeated root
f(x) = (x + 2)²(x - 3)² ← expand factors and simplify
= (x² + 4x + 4)(x² - 6x +9)
= - 2x³ - 11x² + 12x + 36 ← is a possible equation
Answer: 1+5/7
Step-by-step explanation:
16-2r=3-r+6r+1
We move all terms to the left:
16-2r-(3-r+6r+1)=0
We add all the numbers together, and all the variables
-2r-(5r+4)+16=0
We get rid of parentheses
-2r-5r-4+16=0
We add all the numbers together, and all the variables
-7r+12=0
We move all terms containing r to the left, all other terms to the right
-7r=-12
r=-12/-7
r=1+5/7
Answer:
4x-2
Step-by-step explanation:
6x-6-2x+4
=4x-2