Answer:
Step-by-step explanation:
This is for the first question.
Slope-intercept is:
m - slope
b - y-intercept
We are given the slope of 
and a y-intercept of 2.
Plug in the values:
Hope this helps.
Answer:
65
Step-by-step explanation:
40 + 5 × 5
40 + 25
65
<h3><em>Good</em><em> </em><em>Luck</em><em>!</em></h3>
Note: I also come from another country •-•
I think it is 555??
355+200=555
Answer:
Solutions are 2, -1 + 0.5 sqrt10 i and -1 - 0.5 sqrt10 i
or 2, -1 + 1.58 i and -1 - 1.58i
(where the last 2 are equal to nearest hundredth).
Step-by-step explanation:
The real solution is x = 2:-
x^3 - 8 = 0
x^3 = 8
x = cube root of 8 = 2
Note that a cubic equation must have a total of 3 roots ( real and complex in this case). We can find the 2 complex roots by using the following identity:-
a^3 - b^3 = (a - b)(a^2 + ab + b^2).
Here a = x and b = 2 so we have
(x - 2)(x^2 + 2x + 4) = 0
To find the complex roots we solve x^2 + 2x + 4 = 0:-
Using the quadratic formula x = [-2 +/- sqrt(2^2 - 4*1*4)] / 2
= -1 +/- (sqrt( -10)) / 2
= -1 + 0.5 sqrt10 i and -1 - 0.5 sqrt10 i
