Answer:
I need more info of the shape
Step-by-step explanation:
.20x=35
x=$175 total money to start
175-35(money she gave to Bill)=140 left
140/2=$70 spent 70 on books and has $70 left.
If the numbers are negative
ex:
-1-4+1 =-4
I hoped that kinda helped
Answer:
Statements 3, 4 and 5 are true.
Step-by-step explanation:
x^2 - 8x + 4
Using the quadratic formula:
x = [ -(-8) +/- √((-8)^2 - 4*1*4)] / 2
= (8 +/- √(64 - 16)) / 2
= 4 +/- √48 / 2
= 4 +/- 4√3/2
= 4 +/- 2√3.
So the third statement is true.
Converting to vertex form:
x^2 - 8x + 4
= (x - 4)^2 - 16 + 4
= (x - 4)^2 -12
So the extreme value is at (4, -12)
So the fourth statement is true.
The coefficient of the term in x^2 is 1 (positive) so the graph has a minimum.
The answer is 49.5 for the variable c