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2 years ago

10. If x = -2, y=-6 and z= 4, find the value of 4xyZ

Mathematics

1 answer:

Grace [21]2 years ago

5 0

Answer:

192

Step-by-step explanation:

Given

4xyz ← substitute given values into expression

= 4 × - 2 × - 6 × 4 = - 8 × - 24 = 192

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If x = -6 and y = -2, evaluate the expression. 3x - 10 y-5

Bond [772]

Is it
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2 years ago

1000000000000000000000000000000000000000000000X100/1/222X1

jok3333 [9.3K]

Answer:

4.5045045 x 10^44

Step-by-step explanation:

I just put it into a calculator idk if its even right

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2 years ago

What is the value of the expression 2^0/4^2

xz_007 [3.2K]

Anything to the zeroth power is equal to 1. (The numerator is equal to one because of this rule)

So.

$\frac{1}{4^2} = \frac{1}{16}$

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3 years ago

Read 2 more answers

PLEASE HELP MEEEE HURRRY!!! :)

sammy [17]

Answer:

Option D

Step-by-step explanation:

We are given the following equations -

$\begin{bmatrix}-5x-12y-43z=-136\\ -4x-14y-52z=-146\\ 21x+72y+267z=756\end{bmatrix}$

It would be best to solve this equation in matrix form. Write down the coefficients of each terms, and reduce to " row echelon form " -

$\begin{bmatrix}-5&-12&-43&-136\\ -4&-14&-52&-146\\ 21&72&267&756\end{bmatrix}$ First, I swapped the first and third rows.

$\begin{bmatrix}21&72&267&756\\ -4&-14&-52&-146\\ -5&-12&-43&-136\end{bmatrix}$ Leading coefficient of row 2 canceled.

$\begin{bmatrix}21&72&267&756\\ 0&-\frac{2}{7}&-\frac{8}{7}&-2\\ -5&-12&-43&-136\end{bmatrix}$ The start value of row 3 was canceled.

$\begin{bmatrix}21&72&267&756\\ 0&-\frac{2}{7}&-\frac{8}{7}&-2\\ 0&\frac{36}{7}&\frac{144}{7}&44\end{bmatrix}$ Matrix rows 2 and 3 were swapped.

$\begin{bmatrix}21&72&267&756\\ 0&\frac{36}{7}&\frac{144}{7}&44\\ 0&-\frac{2}{7}&-\frac{8}{7}&-2\end{bmatrix}$ Leading coefficient in row 3 was canceled.

$\begin{bmatrix}21&72&267&756\\ 0&\frac{36}{7}&\frac{144}{7}&44\\ 0&0&0&\frac{4}{9}\end{bmatrix}$

And at this point, I came to the conclusion that this system of equations had no solutions, considering it reduced to this -

$\begin{bmatrix}1&0&-1&0\\ 0&1&4&0\\ 0&0&0&1\end{bmatrix}$

The positioning of the zeros indicated that there was no solution!

Hope that helps!

6 0

3 years ago

Cual es el area de un circulo que mide de diametro 13.6

Vinil7 [7]

Answer:

About 145.27

Step-by-step explanation:

The diameter of a circle is twice the radius, meaning that the radius of this circle is 13.6/2=6.8.

$A=\pi r^2=\pi \cdot 6.8^2=46.24\pi \approx 145.27$

Hope this helps!

6 0

2 years ago

10. If x = -2, y=-6 and z= 4, find the value of 4xyZ​

10. If x = -2, y=-6 and z= 4, find the value of 4xyZ