Answer:
8 5 and 6 are the coefficients
Step-by-step explanation:
Answer:
- x ≈ -0.107760269824
- x ≈ 1.98779489573
Step-by-step explanation:
The quadratic portion of f(x) factors as (-4x)(x -2), so has zeros at x=0 and x=2. The cosine portion of f(x) will have a value of 1 at x=0 and a value of about -0.15 at x=2. Thus, we might expect roots to be slightly negative and near x=2. (It turns out that a not-unreasonable approximation of the cosine function as cos(x) ≈ 1-x²/2 can be usefully used to get better approximations of the roots in each case.)
A graphing calculator makes it easy to find initial approximations of the two roots. The graph shows them to be -0.108 and 1.988.
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Many graphing calculators also include the ability to determine a numerical value of the derivative of a function. This makes it possible to write an iteration function after the fashion of Newton's Method iteration:
g(x) = x -f(x)/f'(x)
where g(x) gives a new value for old guess x, and f'(x) is the derivative of f(x).
The calculator we used is interactive, so the value of g(x) is found even as you type the argument value x. That makes it possible to achieve full calculator accuracy for the root estimate simply by copying the approximate value into the expression g(x).
x ∈ {−0.107760269824, 1.98779489573}
Answer:
its D. on an average day they will see about the same percentage of patients with types A and B.
Edit: There are two similar question here on brainly, but two different answer, D and B. so i'm not sure
We have been given a graph. We are asked to find the values of x,y and z.
We will use parallel line's angles to solve our given problem.
We know that corresponding angles of parallel lines are equal.
We can see that angle and 67 are corresponding angles, so we can set an equation as:
Therefore, the value of x is 32.
We know that interior angles on same side of transversal are supplementary.
We can see that and 67 are interior angles, so we can set an equation as:
Therefore, the value of y is .
We can set an equation for angle z as:
Upon substituting value of z, we will get:
Therefore, the value of z is 13.5.