Precalculus Solutions | Expert Assistance for Problems & Examples

A radio station gives a pair of concert tickets to the six caller who knows the birthday of the performer. For each person who calls, the probability is 0.75 of knowing the performers

kuCAu 2020-12-12

verify that $(A B)^{T} = B^{T} A^{T}$
If $A = [\begin{matrix} 2 & 1 \\ 6 & 3 \\ - 2 & 4 \end{matrix}] and B = [\begin{matrix} 2 & 4 \\ 1 & 6 \end{matrix}]$

Lennie Carroll 2020-12-09

Given the matrices A and B shown below , solve for X in the equation $- \frac{1}{3} X + \frac{1}{2} A = B$
$A = [\begin{matrix} - 10 & 4 \\ 8 & 8 \end{matrix}], B = [\begin{matrix} 9 & - 1 \\ 4 & 2 \end{matrix}]$

glamrockqueen7 2020-12-09

What is the sum of the first six terms of the series?
$40 - 10 + 2.5 - 0.625 + . . .$
What is the answer as a simplified fraction

Joni Kenny 2020-12-09

Identify orthogonal matrices Invert orthogonal matrice
$[\begin{matrix} \frac{1}{3} & \frac{2}{3} & \frac{2}{3} \\ \frac{2}{3} & \frac{1}{3} & - \frac{2}{3} \\ \frac{2}{3} & - \frac{2}{3} & \frac{1}{3} \end{matrix}]$

waigaK 2020-12-07

Use the given coding matrices to encode and then decode the given message HELP.
$A = [\begin{matrix} 4 & - 1 \\ - 3 & 1 \end{matrix}]$ and its inverse $A^{- 1} = [\begin{matrix} 1 & 1 \\ 3 & 4 \end{matrix}]$

Cabiolab 2020-12-07

Find the determinants in Exercise , assuming that
$| \begin{matrix} a & b & c \\ d & e & f \\ g & h & i \end{matrix} | = 4$
$| \begin{matrix} 2 a & 2 b & 2 c \\ d & e & f \\ g & h & i \end{matrix} |$

Khadija Wells 2020-12-07

Let $A = [\begin{matrix} 1 & 2 \\ - 1 & 1 \end{matrix}] and C = [\begin{matrix} - 1 & 1 \\ 2 & 1 \end{matrix}]$
a)Find elementary matrices $E_{1} and E_{2}$ such that $C = E_{2} E_{1} A$
b)Show that is no elementary matrix E such that $C = E A$

naivlingr 2020-12-07

Write the complex number in standart form $6 i^{2} - 8 i^{3}$

Khaleesi Herbert 2020-12-07

Tell whether it’s matrices is in. Reduced form and the solution. If it’s not then give the row operation required to put it into reduced form
$[\begin{matrix} 1 & 0 & - 4 & | & 0 \\ 0 & 1 & 2 & | & 0 \\ 0 & 0 & 0 & | & 1 \end{matrix}]$

Yulia 2020-12-06

Show that A and B are not similar matrices
$A = [\begin{matrix} 1 & 0 & 1 \\ 2 & 0 & 2 \\ 3 & 0 & 3 \end{matrix}], B = [\begin{matrix} 1 & 1 & 0 \\ 2 & 2 & 0 \\ 0 & 1 & 1 \end{matrix}]$

Wotzdorfg 2020-12-06

Multiply the polynomials (2.1y – 0.5)(y + 3).

Armorikam 2020-12-06

A gambling book recommends the following "winning strategy" for the game of roulette. It advises a $1 single wager from the player. When the color red appears (probability 18/38), the gambler should take her $1 profit . If the gambler loses this bet (which has probablity 20/38 of occurring), she should make additional $1 bets on red on each of the next two spins of the roulette wheel and then quite. Let X denote the gamblers

Zoe Oneal 2020-12-05

To locate a fruitful well, an oil prospector will drill a series of holes in a particular area. The probability that he is successful on a given trial is 0.2. What is the chance that the third hole drilled will be the first to produce a successful well?

postillan4 2020-12-05

Find the inverse of each of the following matrices.
$[\begin{matrix} 1 & 0 & 1 \\ - 1 & 1 & 1 \\ - 1 & - 2 & - 3 \end{matrix}]$

nitraiddQ 2020-12-05

Let R be the relation on the set {0, 1, 2, 3} containing the ordered pairs (0, 1),(1, 1),(1, 2),(2, 0),(2, 2),(3, 0). Find reflexive, symmetric and transitive closure of R.

pedzenekO 2020-12-05

$A = [\begin{matrix} 1 & - 3 & 3 \\ 1 & 0 & - 2 \end{matrix}], B = [\begin{matrix} - 3 & 1 & 2 \\ 2 & 5 & - 3 \end{matrix}]$
Find 2B?

Jason Farmer 2020-12-05

A sports team has 7 players. In how many ways can the team select a captain and junior captain?

Efan Halliday 2020-12-05

Multiply the polynomials: $6 x y^{2} (1 / 2 x - 2 / 3 x y)$

texelaare 2020-12-05

Add the polynomials: (6.1y + 3.2x) + (4.8y – 3.2x)

Precalculus problems and solutions are hard to find online even though this topic is quite popular among college students majoring in Engineering. Keeping this fact in mind, we decided to provide you with a list of questions and answers that will help you with various precalculus problems. Regardless if it is related to equations or any other problem, these precalculus problems and composite functions examples and solutions below will help you see the logic and compare solutions as you check your original task.

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