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-BARSIC- [3]
3 years ago
9

If a matrix is not invertible, can I say the matrix has many solutions? Or is the matrix has many solutions as well as the possi

bility or no solutions? And so if a matrix is invertible, the system of equations will definitely only have one unique solution?
Mathematics
1 answer:
zysi [14]3 years ago
8 0
<span>If a matrix is invertible, there are many solutions to Ax=0,  I am referring to both homogeneous and non-homogeneous types.</span>
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How far does the tip of the minute hand of a clock move in 1 hour and 27 minutes if the hand is 2 inches long?
Nesterboy [21]
So, a full circle has 360°, thus when the minute hand does one hour, it does a full circle, therefore 360°.

now, how many degrees are there in 1 minute?  well, there are 60 minutes in 360°, therefore there are 360/60 degrees in 1 minute, or 6°.

now, we know in 1 hour there are 360°, how many in 27 minutes?  well, 27 * 6, or 162°.  So after 1hr and 27min, the minute hand has done 360+162 or 522°.

we also know the minute hand is 2 inches long, thus

\bf \textit{arc's length}\\\\&#10;s=\cfrac{\pi \theta r}{180}\quad &#10;\begin{cases}&#10;r=radius\\&#10;\theta =angle~in\\&#10;\qquad degrees\\&#10;------\\&#10;r=2\\&#10;\theta =522&#10;\end{cases}\implies s=\cfrac{\pi \cdot 522\cdot 2}{180}


which is roughly 18 inches rounded up.
5 0
3 years ago
Partial product of 8.6x9.2
Kisachek [45]

8.6*9.2=79.12

Hope this helps!

5 0
3 years ago
The Right Answer Only You will get Reported if its wrong!!!!!
vekshin1

Answer:

46

Step-by-step explanation:

I found the angle by taking the opposite side of the angle, 38, and dividing it by the hypotenuse, 53.

Then I used the inverse sine function on 38/53 to get the angle 45.81, which I rounded to 46.

7 0
3 years ago
Read 2 more answers
A toy is shaped as a triangular prism. The toy has a
Anettt [7]

Answer:

\huge\boxed{\sf h = 6.75 \ in.}

Step-by-step explanation:

<u>Given Data:</u>

Base area = A_{B} = 108 in.²

Volume = V  = 729 in.³

<u>Required:</u>

Height = h = ?

<u>Formula:</u>

V=A_{B}h

<u>Solution:</u>

For h, rearranging formula:

\displaystyle h = \frac{V}{A_{B}} \\\\h =\frac{729 \ in.^3}{108 \ in.^2} \\\\h = 6.75 \ in.\\\\\rule[225]{225}{2}

4 0
3 years ago
How to solve this algebraically?
Keith_Richards [23]
Ok so x+4-1 makes x-1 so i belive the answer could be 1/5 
7 0
3 years ago
Read 2 more answers
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