Answer:
The quadratic equation is x^2-2x-4
Step-by-step explanation:
We want to know the equation that has the solution below;
x = 1 ± √5
This means x = 1 + √5 or 1 - √5
The equation would thus be;
(x-1-√5)(x-1+ √5)
= x(x-1+ √5)-1(x-1+ √5)-√5(x-1+ √5)
Opening the brackets we have ;
x^2-x+ √5x-x + 1 -√5-√5x+ √5-5
collecting like terms we have;
x^2-2x+1-5
= x^2-2x-4
Answer:
9.0625%
Step-by-step explanation:
It increased from 320 to 349
This is a percent INCREASE.
320 is the "old" value and 349 is the "new" value.
We find percent increase by the formula:
Where old is 320 and new is 349. Lets substitute and find the increase (percentage):
The percentage increase is 9.0625%
The answer Is: C because it’s a line that passss through the two points in the table
$150 = 1 month
Movie ticket=$15
Ballet ticket=$35
Money spent
1 ballet ticket=$35
3 movie tickets=(3x15)=$45
Money spent =$80
Money left=(total amount-money spent)
=($150 -$80)
=$70
Ballet shows Julie would be able to attend=$70/$35
=2
Julie would be able to attend two ballet shows and stay in her budget
Answer:
x=0
Step-by-step explanation:
in the quadratic formula to only have one solution
for 
so we have
if we insert in the formula we have
since a≠0
