Ask question

Ask question

All categories

3 years ago

14

If a determinant of a 2 x 2 matrix is 0, what can you conclude about the inverse of the matrix?

1 answer:

icang [17]3 years ago

3 0

Any singular matrix (a matrix with zero determinant) has no inverse.

You might be interested in

Which is closest to the volume of a cylinder with a height of 11 inches and

Veseljchak [2.6K]

Answer:

The closest to the volume of cylinder is <u>63 in.³</u>.

Step-by-step explanation:

Given:

Cylinder with a height of 11 inches and a circumference of 8 1/2 inches.

Now, to find the volume.

As circumference is given we get the radius by putting formula:

Circumference = 8 1/2 inches = 17/2 inches.

Let the radius be $r.$

$Circumference=2\pi r$

<em>Taking the value of π = 3.14.</em>

$\frac{17}{2}=2\times 3.14\times r$

$8.5=6.28\times r$

<em>Dividing both sides by 6.28 we get:</em>

$1.35=r$

So, radius = 1.35 inches.

Height = 11 inches.

Now, putting the formula to get the volume:

$Volume=\pi r^2h$

$Volume=3.14\times 1.35^2\times 11$

$Volume=3.14\times 1.8225\times 11$

$Volume=3.14\times 20.0475$

$Volume=62.949\ inches^3$

<u><em>Hence, the volume of cylinder = 63 inches³ (approximately).</em></u>

Therefore, the closest to the volume of cylinder is 63 in.³.

4 0

3 years ago

What fraction of two pounds is twenty pence?

Reptile [31]

Hey there

High light all of your key terms of this problems (fraction, of two pounds, and twenty pence)

Answer: We have $200$ pence of the $2$ $Lbs$ , which is also $20$ pence in the $\frac{1}{10} = 10%$

Good luck on your assignment and enjoy your day!

~ $LoveYourselfFIrst:)$

3 0

4 years ago

An antelope can run at a speed of 61 miles per hour. What is this speed in yards per second? Round to the nearest hundredth.

andrew11 [14]

Answer:

20.3 yards per second.

Step-by-step explanation:

I THINK, IM NOT 100% SURE

6 0

3 years ago

Read 2 more answers

Ms. Mastrianni hung artwork on 2/5 of a bulletin board. She hung math papers on 1/5 of the same bulletin board. What part of the

jekas [21]

Answer: The part of the bulletin board has artwork or math papers $=\dfrac35$

Step-by-step explanation:

Given: Part of bulletin board has artwork = $\dfrac{2}{5}$

Part of bulletin board has math papers = $\dfrac{1}{5}$

The part of the bulletin board has artwork or math papers = $\dfrac25+\dfrac15$

$=\dfrac35$

Hence, the part of the bulletin board has artwork or math papers $=\dfrac35$

7 0

3 years ago

A mechanical wave is a wave that _______ its energy

Otrada [13]

Answer:

C

Step-by-step explanation:

A mechanical wave has to have a medium to work

5 0

3 years ago

Read 2 more answers