All categories

4 years ago

T= [4 2]

Mathematics

2 answers:

Ulleksa [173]4 years ago

6 0

Answer:

$a_{13}$

Step-by-step explanation:

The address of an element is the row and column number of the element in the matrix.

If the matrix is $\left[\begin{array}{ccc}4&2\\5&0\\11&-1\\8&3\end{array}\right]$

Then element 11 is row 3 and column 1. Its address is the column followed by the row. 11 is $a_{13}$ .

Nina [5.8K]4 years ago

3 0

$\bf T= \begin{bmatrix} 4&2\\5&0\\\underset{row~3,col~1}{11}&-1\\8&3 \end{bmatrix}\impliedby \textit{11 is at 3,1}$

You might be interested in

Kkiibuivtvyvytvvytkkk

irinina [24]

Answer:

sory po kayo nalang ma answer plss

8 0

3 years ago

A plane flying horizontally at an altitude of 1 mile and a speed of 510 mi/h passes directly over a radar station. Find the rate

sdas [7]

Answer:

442 miles

Step-by-step explanation:

Given

To properly solve this question, I illustrate some given parameters using attached image

From the image, apply Pythagoras theorem

$x^2 + 1^2 = y^2$

Differentiate w.r.t time (t)

$2x\frac{dx}{dt} + 0 = 2y\frac{dy}{dt}$

$2x\frac{dx}{dt} = 2y\frac{dy}{dt}$

Divide both sides by 2

$x\frac{dx}{dt} = y\frac{dy}{dt}$

From the question, we have that the plan travels are 510mi/h.

This implies that:

$\frac{dx}{dt} = 510mi/h$

So, we then calculate the value of x when the distance (y) is 2mi i.e.:

$y = 2mi$

Apply Pythagoras theorem

$x^2 + 1^2 = y^2$

$x^2 + 1^2 = 2^2$

$x^2 + 1 = 4$

$x^2 = 4-1$

$x^2 = 3$

$x = \sqrt 3$

So, the expression becomes:

$x\frac{dx}{dt} = y\frac{dy}{dt}$

$\sqrt 3 * 510 = 2* \frac{dy}{dt}$

$\frac{\sqrt 3 * 510}{2} = \frac{dy}{dt}$

$\sqrt 3 * 255 = \frac{dy}{dt}$

$\frac{dy}{dt} = 255\sqrt 3$

$\frac{dy}{dt} = 255 * 1.7321$

$\frac{dy}{dt} = 441.655$

$\frac{dy}{dt} = 442$

<em>Hence, the distance is 442 miles</em>

7 0

3 years ago

please help I'm really frustrated at this - A baseball diamond is a square with sides of 90 feet. What is the shortest distance,

ioda

The distance from third base to first base is 127.3 feet.

5 0

3 years ago

Question 10 (Mandatory) (2 points) Can a triangle be made from the side lengths? 4 cm, 6 cm, 9 cm Yes, one triangle can be made

Taya2010 [7]

Answer:

No, a triangle cannot be made.

8 0

3 years ago

Read 2 more answers

Write and solve an equation to find the number. The sum of -5 and a number is -15. a. -5 + n = -15; -10 c. n + 5 = -15; -20 b. 5

lisabon 2012 [21]

Let the number = x
Given: The sum of -5 and a number is -15
Then,
x - 5 = -15
or x = -15 +5 = -10.

Hence, the number is -10

7 0

3 years ago