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3 years ago

Which matrix multiplication is possible?

Mathematics

1 answer:

ruslelena [56]3 years ago

8 0

Answer: D

Step-by-step explanation:

dim A=(a,b), dim B=(c,d), in order to multiply, c=b

1) dim A=(1,2) , dim B=(1,2) but 2≠1

2) dim A=(2,1) , dim B=(2,2) but 1≠2

3) dim A=(2,2) , dim B=(1,2) but 2≠1

4) dim A=(2,1) , dim B=(1,2) 1=1: result (2,2)

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Please help me I'm really struggling I can figure it out

yan [13]

Answer:

3 oz. Left

Step-by-step explanation:

First there are 16 oz in 1 pound

Multiply 4 by 16

Then divide 3÷4 and multiply that by 16

Your total should be 76

Subtract 76-73

Your answer is 3 oz left

8 0

4 years ago

Read 2 more answers

What is the difference of the volumes of the two oblique pyramids, both of which have square bases? Round the volumes to the nea

ad-work [718]

Answer:

Step-by-step explanation:

See attachment for the figure

Volume of pyramid can be defined as

V = 1/3 x area of the base x height.

-> Pyramid A:

Volume of Pyramid can be determined by:

V = 1/3 x (2.6cm)² x (2cm) = 4.5067 cm³

Pyramid B:

Volume of Pyramid can be determined by:

V = 1/3 x (2cm)² x (2.5cm) = 3.3333 cm³

Difference b/w two oblique pyramids: 4.5067 cm³ - 3.333 cm³ = 1.17 cm³

By Rounding the volumes to the nearest tenth of a centimeter

1.17cm³ ≈ 1.2cm³

Therefore, the difference of the volumes of the two oblique pyramids is 1.2cm³

4 0

3 years ago

If x > 0 and y > 0, where is the<br> point (x, y) located?

Scrat [10]

Given, x > 0, y > 0.
So, the values of x and y are less than 0, that means, they are negative integers.
If we divide a Cartesian plane with the x-axis and y-axis, we get four quadrants.
1st Quadrant : (+,+)
2nd Quadrant : (-,+)
3rd Quadrant : (-,-)
4th Quadrant : (+,-)
Since the values of x and y are both negative, so (x, y) is located in the <em><u>3rd Quadrant</u></em>.

Hope you could get an idea from here.

Doubt clarification - use comment section

8 0

2 years ago

Identfy the equation that translates Y= In(x) five units down.

mariarad [96]

Answer:

y= In(x)-5

Step-by-step explanation:

3 0

3 years ago

A local hospital currently has 184 male patients. If the ratio of male to female patients is 4:3, how many female patients are t

Afina-wow [57]

There are 138 female patients in the hospital.

<h3>Solving word problems involving ratios.</h3>

The solution to the word problem involving ratios in the given problem can be determined as follows.

From the given information:

The total number of people in the hospital = male + female

= 184 + x(unknown)

If the ratio of male to female is 4: 3.
The total ratio is 4+3 = 7

The ratio of males in the hospital is:

$\mathbf{184= \dfrac{4}{7} \times x }$

$\mathbf{184\times 7= 4 x }$

x = 322

The number of female patients in the hospital can now be computed as:

$\mathbf{=\dfrac{3}{7}\times 322}$

= 138 female patients

Check:

The total number of people in the hospital is:

= 184 + 138

= 322 patients

Learn more about word problems here:

brainly.com/question/13818690

#SPJ1

3 0

1 year ago