Answer:
2.555555555555.....
(the 5 is repeating)
Step-by-step explanation:
This is the answer because:
1) To convert the fraction to a decimal, you have to divide the numerator by the denominator.
2) Therefore, 23/9 is 2.5 (the 5 is repeating)
Hope this helps!
(x-2)squared +y squared=20
Answer:
y = 
x + 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 2x + 2 ← is in slope- intercept form
with slope m = - 2
Given a line with slope m then the slope of a line perpendicular to it is
= - 
= - 
=
The line crosses the y- axis at (0, 1) ⇒ c = 1 , then
y = x + 1 ← equation of perpendicular line
Answer:
Each cost 2.50$
Step-by-step explanation:
6.75+5.95=12.7
17.40-12.7=5
5÷2= 2.5
Each cost 2.50$
Answer:
x²+2x-3=0
According to Vieta's formula:
x²-(Sum of roots)x+(product of roots)=0
Sum of roots=-3+1=-2
Product of roots=-3×1=-3
The equation is x²-(-2)x+(-3)=0
x²+2x-3=0
