number of diagonal elements In a unit matrix

Answers

Answer 1

Answer:

Unit matrix is a diagonal matrix in which all the diagonal elements is 1 and rest of the elements are 0

Answer 2

Answer:

1

Step-by-step explanation:

the main diagonal element of m×m unit matrix is always 1


Related Questions

Find ∠B in ABC if ∠A = 85° and ∠C = 11°

Answers

Answer:

a

Step-by-step explanation:

Answer plz!!! if you put a not so nice or relevent answer i will do the same...

Answers

Answer:

The answer should be B) T = 4.5n

Step-by-step explanation:

Answer:

B. T = 4.5n

Step-by-step explanation:

4.5 * n (the number of tickets sold) = T (Total money the school makes from the ticket money)

Scale Factor
What scale factor was applied to the first rectangle to get the
resulting image?

Enter your answer as a decimal in the box.

Answers

Answer:

Scale factor = 2.5

Step-by-step explanation:

The scale factor that was applied = length of the resulting image ÷ length of the first rectangle

Length of resulting image = 7.5

Length for first rectangle = 3

Scale factor = 7.5/3 = 2.5

HELPPPP!!;!;!,!,!,!!,!,!;?,!,

Answers

Answer: is the first equation. A

HEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLPPPPPPP ASAP

Answers

Answer:

Choice B

Step-by-step explanation:

Divide 3 by 36.75

The result is 12.25

At a summer camp, there are 15 counselors, 5 cooks, and 120 campers. 5 points
What is the ratio between the number of counselors and the number of campers for this summer camp?*
1:4
1:6
1:8
1:12


Pls answer asap!!

Answers

Answer: 1:6 I believe

Gabrielle is 13 years older than Mikhail. the sum of their ages is 113. what is mikhails age?​

Answers

Step-by-step explanation:

g=m+13

g+m=113

use substitution

Answer:

50 years old

Step-by-step explanation:

Let's say that Mikhail's age is x.

If so, Gabrielle's age would be 13 years older, therefore x + 13

We know that the sum of their ages is 113, so we can form this equation:

x + x + 13 = 113

Solving this equation, we get:

x + x = 100

2x = 100

x = 50

50 is Mikhail's age, so Gabrielle's age is 63

HELP ME PLEASE I WILL MARK BRAINLIEST

Answers

Massage me if it’s not clear

Hope it’s right
Best luck with your studying

a) 50

b)12/6

.......................

what is the first step to solve the equation 2x - 8 = 14

Answers

adding 8 to 14 is the first step :)
the answer is 14 correct did this before! nope this helps!

Need help please confused

Answers

Answer:

a. 11.6 (rounded to nearest tenth)

b. Yes

Step-by-step explanation:

a²+b² = c²

6²+10² = c²

36²+100 = c²

136 = c²

√136 = √c²

11.6  = c

b. because 11.6 is the hypotenuse (longest side length) and there is 6 and 10 as the shorter leg lengths.

1. What is the sum of (x+y) and (3x-2y)? *

Answers

Hii!

=(x+y)+(3x-2y)

=(x+3x) + (y-2y)

= 4x- y

Hope it helps:)

Simplify the expression:
6(2u+ 1)
=

Answers

Answer:

12u + 6

Step-by-step explanation:

tanx cscx= 1/f(x)
simplify and write the trigonometric expression in terms of sine and cosine​

Answers

Answer:

f(x) = cos(x)

Step-by-step explanation:

tanx cscx = (sinx/cosx) * (1/sinx) = 1/cosx

1/f(x) = 1/cosx

f(x) = cos(x)

The given trigonometric equation in terms of sine and cosine​ is f(x)=cosx.

The given trigonometric function is tanx·cscx= 1/f(x).

What is the trigonometric equation?

A trigonometric equation is one that involves one or more of the sixs sine, cosine, tangent, cotangent, secant, and cosecant. Some trigonometric equations, like x = cos x, can be solved only numerically, through successive approximations.

We know that, tanx = sinx/cosx and cscx=1/sinx

Now, 1/f(x) = tanx·cscx

= sinx/cosx × 1/sinx

= 1/cosx

So, 1/f(x) = 1/cosx

Take inverse on both the side of equation, we get

f(x)=cosx

Hence, the given trigonometric equation in terms of sine and cosine​ is f(x)=cosx.

To learn more about the trigonometric equation visit:

brainly.com/question/23599274.

#SPJ2

9. Use the formula A=bh to find the area of the
rectangle below. Substitute' the appropriate
numbers for each variable and solve to find A,
the area.
10. L
of th
appr
solv
7 ft
4.5 ft

Answers

Answer:

31.5 ft²

Step-by-step explanation:

7x4.5=31.5 ft²

THE amusement park won't allow kids to ride roller-coasters until they are a minimum of 48 inches tall. Michael is now 42 inches tall, and grows about 1/2 inch every month. How many months will it be until Michael can read a roller coaster? Please show me the individual steps?

Answers

Answer: It will one year (or 12 months) before Michael is able to ride the roller coaster.

Step-by-step explanation: Because he grows a half inch every month, this means that It takes him two months to grow one full inch. Because he has to grow six inches, you just multiply 2 by 6 to get 12 months or one year.

Answer:

48-42=6, which is how much Michael needs to grow.

1/2x=6, where x is the number of months

x = 12 months.

1 year = 12 months so the answer is one year.

Solve this equation for a: 6a + 3 = 45
A.6
B.7
C.8
D.9

Answers

Answer:  7

Step-by-step explanation:

6 x 7 = 42

42+3 =45

Therefore 7 is the answer

Answer:

B. 7

Step-by-step explanation:

Answer to A. 6 = 6(6) + 3 = 39 (wrong answer)

Answer to B. 7 = 6(7) + 3 = 45 (correct answer)

Answer to C. 8 = 6(8) + 3 = 51 (wrong answer)

Answer to D. 9 = 6(9) + 3 = 57 (wrong answer)

I hope this helps :)

PLEASE HELP ON THIS QUESTION IVE BEEN STUCK ON IT FOR HOURS! WILL MARK BRAINLIEST ASAP!!

Your realized income from your primary job is $2,034.24/month. Your fixed expenses are 30% of your primary job’s realized income. You have a 2nd job that pays $9.50/hr with deductions of FICA (7.65%), federal tax withholding (11.5%), and state tax withholding (7.75%). If you want to save enough in the next 10 months to have an emergency fund that will cover 5 months using only 20% of your discretionary monies from your primary job, how many hours per month do you need to work at your 2nd job to meet your monthly savings goals?

Answers

The answer would be 3 hours.

A number is at least four (translating inequalities)

Answers

Answer:

[tex]n \ge 4[/tex]

Step-by-step explanation:

Given

A number is at least 4

Required

Write as inequality

Let the number be n

So, we have:

n is at least 4

In inequalities, at least means [tex]\ge[/tex]

So, the expression becomes

[tex]n \ge 4[/tex]

Which of the following best describes term response variable

Answers

The dependent variable responds to variations in the separate variable manipulated during the experiment. It allows you to understand whereas if changes involved possess or are not significantly linked or whether they are because of certain factors.

The variable may change as that of the explained variable modifications.It's (dependent variable), which wishes to predict and explain is a response variable.An explanatory variable explains the changes.It can be anything that affects the variable response.It was only on the y-axis always (the vertical axis).

Learn more:

brainly.com/question/5598457

I NEED HELP NOW PLZ!!!

Answers

Answer:

c

Step-by-step explanation:

x=-8

y= -5

therefore y=-5

and c is the answer

Answer is B, try to put the value
Y=-5
X=-8
Y=5/8 x
-5=5/8 (-8)
Which is
-5=-5

HELP PLEASE ASAP What is the length of the diagonal of the square shown below?

Answers

Answer:

C) diagonal = 5√2

Step-by-step explanation:

diagonal² = 5² + 5²

diagonal² = 50

diagonal = √50

diagonal = √25x2

diagonal = 5√2

Answer:

C) diagonal = 5√2

Step-by-step explanation:

diagonal² = 5² + 5²

diagonal² = 50

diagonal = √50

diagonal = √25x2

diagonal = 5√2

work out 2 1/7 + 1 1/4​

Answers

Answer:

95/28

Step-by-step explanation:

3 3/10 because u find common denominator which would be 28 and then u add them together and it comes out to 95/28 which simplifies to 3 3/10.


A) 1080°
C) 720°
B) 1800°
D) 1620

Answers

Answer:

D- I hope I helped you. Good luck.

A line passes through the points (5,22) and (7,24). Write a linear function rule in terms of x and y
for this line.

Answers

It 20 because it is and you multiply

what is the value of the underlined digit ? write your answers as as fraction​

Answers

Answer: one place

Step-by-step explanation:

Write the Whole Number as a Fraction Over One.

Choose A New Denominator.

Multiply Both Numerator and Denominator.

Out of 4,000 colleges surveyed, 60% reported that SAT scores were not used as a high consideration in viewing their applications. How many schools view the SAT as important in screening applicants?

Answers

Answer:

Hi.  

The first thing you want to know is how many schools 60% is.

To find 60%: 4,000 x 0.6 (b/c 0.6 = 60%)  

so, 60% of 4,000 = 2,400

To find the number of schools that consider SAT scores:  

Subtract 2,400 from 4,000 which, equals 1,600

              or

Find the remaining percentage; 40%:

4,000 x 0.4 = 1,600

Answer: 1,600 colleges

I hope this helps a little bit.

Please help me out here

Answers

Answer:

your answer is C) A negative radius does not make sense.

Step-by-step explanation:

hope it helps  ^_^

I need help finding
sin B=
?
the options to choose from are

b/a

a/c

b/c​

Answers

Answer:

the correct answer will be b/c

Which graph represents the relationship?

Answers

Answer:

option 3 is the answer of this

3x+4y = 12
Can you help solve please?

Answers

Answer: y = -3/4x+3

Step-by-step explanation:

3x+4y=12

4y=-3x+12

y = -3/4x+3

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