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victus00 [196]
3 years ago
14

Guys i need ur help fast please ​

Mathematics
1 answer:
Maslowich3 years ago
6 0

Answer:

a) -3

b) 5

c) 7

d) 4

Step-by-step explanation:

We have the function p(x)=5x^3-3x^2+2x^5+7

a) We need to find the coefficient of x^2.

This means that we need to find out what number is alongside the x^2 in this equation. From the function, we can find that it is -3

b) Now we need to find the degree of p(x). Recall that the degree refers to the highest power of x that is present. As x^5 is the largest power, our degree would be 5.

c) The constant term refers to the number within the function that does not have any x's with it. In this function, that number would be 7.

d) Now we need to find the number of terms. For this one, we just need to count how many terms are separated by + or - signs. There are 4 in this function.

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1. What is the solution of the system of equations shown below?<br> y = 3x + 7<br> y = x-9
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Naddik [55]

Answer:

The answer is below

Step-by-step explanation:

Given the system of equations:

x + y + 2z = 9

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This system of equation can be solved using matrix. This done by first representing the equations as matrix and then solving:

The matrix form is:

\left[\begin{array}{ccc}1&1&2\\2&4&-3\\3&6&-5\end{array}\right]  \left[\begin{array}{c}x\\y\\z\end{array}\right] = \left[\begin{array}{c}9\\1\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}1&1&2\\2&4&-3\\3&6&-5\end{array}\right]  ^{-1} \left[\begin{array}{c}9\\1\\0\end{array}\right] \\\\\\

\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2&-17&11\\-1&11&-7\\0&3&-2\end{array}\right]   \left[\begin{array}{c}9\\1\\0\end{array}\right] \\\\\\ \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{c}1\\2\\3\end{array}\right]

5 0
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