Answer:
Step-by-step explanation:
answer: -5x+12=20
-12 -12
-5x/-5= 8/-5
x= -1.6
Check: rewrite the orignal problem
plug your variable
2y = - 4x + 12
y = - 2x + 6
y intercept = 6
the answer is D
84? I think u just divide if I’m not Erie try and divide because I’m doing it the way of average speed
Answer:
n = 29 iterations would be enough to obtain a root of
that is at most
away from the correct solution.
Step-by-step explanation:
You can use this formula which relates the number of iterations, n, required by the bisection method to converge to within an absolute error tolerance of ε starting from the initial interval (a, b).

We know
a = -2, b = 1 and ε =
so

Thus, n = 29 iterations would be enough to obtain a root of
that is at most
away from the correct solution.
<u>You can prove this result by doing the computation as follows:</u>
From the information given we know:
This is the algorithm for the Bisection method:
- Find two numbers <em>a</em> and <em>b</em> at which <em>f</em> has different signs.
- Define

- If
then accept c as the root and stop - If
then set <em>c </em>as the new<em> b</em>. Otherwise, set <em>c </em>as the new <em>a</em>. Return to step 1.
We know that
and
so we take
and
then 
Because
we set
as the new <em>b.</em>
The bisection algorithm is detailed in the following table.
After the 29 steps we have that
hence the required root approximation is c = -0.50