Precalculus Solutions | Expert Assistance for Problems & Examples

Suppose a class consists of 3 students majoring in Mathematics, 4 students majoring in Chemistry and 4 students majoring in Computer Science. How many arrangements are possible for forming a group of 3 students, if each group should consist at least 2 students majoring in chemistry?

slaggingV 2021-09-03

A polynomial f (x) with real coefficients and leading coefficient 1 has the given zero(s) and degree. Express f (x) as a product of linear and quadratic polynomials with real coefficients that are irreducible over R.
$- 1, 0, 3 + i .$ degree 4

Rui Baldwin 2021-09-03

Find the Taylor polynomials of orders 0,1,2, and 3 generated by $f (x) = \ln (9 + x)$ at x=4

e1s2kat26 2021-09-03

Let $f (x) = \cos (2 x) + 7$ . Compute the following Taylor polynomials of f. For any approximations, you should use around 6 decimals.

ossidianaZ 2021-09-03

Add or subtract the rational expressions as indicated. Be sure to express your answers in simplest form.
$3 \frac{x}{2 x + 5} + 1$

Anish Buchanan 2021-09-03

Show that $f (x) = x^{2} + 3 x^{- 1}$ and $g (x) = 3 x^{3} - 9 x + x^{- 2}$ are rational functions that is, quotients of polynomials.

Ayaana Buck 2021-09-03

Calculate the Taylor polynomials $T 2 (x)$ and $T 3 (x)$ centered at $x = 9$ for $f (x) = \ln (x + 1)$ .

Emeli Hagan 2021-09-02

Find composite function $f \circ g and g \circ f$ . Find the domain of each composite function. Are the two composite funcctions equal?
$f (x) = x^{2}$
$g (x) = \sqrt{x}$

Ayaana Buck 2021-09-02

Please justify whether the series converges or diverges, and find sum, if it converges.
$\sum_{n = 1}^{\infty} \frac{3}{n^{2}}$

boitshupoO 2021-09-02

Do you agree with the contention that the functions $f (x) = x + 2$ and $g (x) = \frac{x^{2} - 4}{x - 2}$ are the same in every respect. Provide evidence to support your position.

aortiH 2021-09-02

The probability that an event will happen is $P (E) = \frac{24}{29}$ . Find the probability that the event will not happen

ossidianaZ 2021-09-02

Determine the degree of the given polynomials.
$7 x^{3} - 2 x + 4$

a2linetagadaW 2021-09-02

Degrees of Sums and Products of Polynomials
Make up several pairs of polynomials, then calculate the sum and product of each pair. On the basis of your experiments and observations, answer the following questions.
a) How is the degree of the product related to the degrees of the original polynomials?
b) How is the degree of the sum related to the degrees of the original polynomials?
c) Test your conclusions by finding the sum and product of the following polynomials:
$2 x^{3} + x - 3$ and $- 2 x^{3} - x + 7$

melodykap 2021-09-01

Subtract the polynomials.
$(8 a^{2} - 7 a + 9) - (a^{2} - 8 a + 5)$

Lennie Carroll 2021-09-01

Police response time to an emergency call is the difference between the times the call is first received by the dispatcher and the time a patrol car radios that it has arrived at the scene. over a long period of time it has been determined that the police responce time has a normal distribution with a mean of 8.4 minutes and a standard deviation of 1.7 minutes. for a randomly recieved emegency call, what is the probability that the response time will be:
a) between 5 and 10 min
b) less than 5 min
c) more than 10 min

CMIIh 2021-09-01

A company has 34 salespeople. A board member at the company asks for a list of the top 5 salespeople, ranked in order of effectiveness. How many such rankings are possible?

Maiclubk 2021-09-01

This is adding and subtracting polynomials.
$E = 6 c^{2} - 2 c - 1$
$F = - 4 c^{2} + 7 c + 5$
$E + F = ?$

alesterp 2021-09-01

Find the zeroes of the given polynomials
$p (x) = x^{4} - 16$

vazelinahS 2021-09-01

Find the product: $(x + 4) (x^{2} - 3 x + 2)$ .

Elleanor Mckenzie 2021-09-01

For the function defined as follows, find the Taylor polynomials of degree 4 at 0.
$f (x) = e^{x + 1}$

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