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vladimir1956 [14]

2 years ago

8

Whats the value of the expression below 36÷(

mula1" title="\frac{2^{5} }{8}" alt="\frac{2^{5} }{8}" align="absmiddle" class="latex-formula">)+7x(3+11)?

1 answer:

JulijaS [17]2 years ago

4 0

The answer is what that guys said

(Also what grade is this?)

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The expression ''5 factorial" (5!) Equals

lyudmila [28]

Answer:

5 factorial equals 120.

Step-by-step explanation:

5*4*3*2*1=120

4 0

2 years ago

PLEASE HELP PRE ALGEBRA EASY 10 POINTS

Advocard [28]

What I’m support to fine it in the graph or find the slop, solve for x or y???? Put the whole question so I can help you

8 0

2 years ago

Find the inverse of this matrix.<br> 1 -1 -1<br> -1 2 3 <br> 1 1 4

zheka24 [161]

Let's use Gaussian elimination. Consider the augmented matrix,

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\-1 & 2 & 3 & 0 & 1 & 0\\1 & 1 & 4 & 0 & 0 & 1\end{array}\right]$

• Add row 1 to row 2, and add -1 (row 1) to row 3:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 2 & 5 & -1 & 0 & 1\end{array}\right]$

• Add -2 (row 2) to row 3:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 2 & 1 & 1 & 0\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

• Add -2 (row 3) to row 2:

$\left[\begin{array}{ccc|ccc}1 & -1 & -1 & 1 & 0 & 0\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

• Add row 2 and row 3 to row 1:

$\left[\begin{array}{ccc|ccc}1 & 0 & 0 & 5 & 3 & -1\\0 & 1 & 0 & 7 & 5 & -2\\0 & 0 & 1 & -3 & -2 & 1\end{array}\right]$

So the inverse is

$\begin{bmatrix}1&-1&-1\\-1&2&3\\1&1&4\end{bmatrix}^{-1} = \boxed{\begin{bmatrix}5&3&-1\\7&5&-2\\-3&-2&1\end{bmatrix}}$

3 0

3 years ago

John is going for a walk. He walks for 6.4 miles at a speed of 2 miles per hour. For how many hours does he walk?

KonstantinChe [14]

Answer:

t = d/s

t = 6.4 / 2 miles

t = 3.2 miles

Step-by-step explanation:

follow me plzzz

8 0

2 years ago

An irregular polygon is shown below:

lord [1]

24 units or you can put 7x4 units

3 0

1 year ago