Which pairs of matrices are inverses?

Which Pairs Of Matrices Are Inverses?

Answers

Answer 1

Answer:

B is the answer

Step-by-step explanation:

Answer 2

Answer:

B

Step-by-step explanation:


Related Questions

what is 5.625 in expanded form

Answers

Answer:

expanded notation form

5

+0.6

+0.02

+0.005

expanded factor form

5×1

+6×0.1

+2×0.01

+5×0.001

dont know which one you need, but there. hope this helps.

A bowling alley charges its customers an hourly rate to bowl plus shoe rental. The hourly rates are per lane.

A linear model of this situation contains the values (2, 41) and (3, 59.25), where x represents the number of hours bowled on one lane, and y represents the total cost for bowling.

What is the rate of change in this linear model?

Answers

Answer:  18.25

Step-by-step explanation:

Answer:

Step-by-step explanation:

dvj 2355

A car travels 90 miles in 1.5 hours. How many miles will it travel in 5 hours if its speed remains the same?

Answers

Answer:

300 miles

Step-by-step explanation:

i am doing the same test right now

The volume, V, of a rectangular prism is determined using the formula V=lwh, where l is the length, w is the width, and h is the height of the prism.


Using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches, and a length of 3.2 inches? Round to the nearest tenth.


0.2 inches

4.5 inches

46.1 inches

414.7 inches

Answers

Answer:

4.5inches

Step-by-step explanation:

Given the volume of a prism expressed as:

V =lwh where:

l is the length

w is the width,

h is the height of the prism.

Given

V = 138.24in³

h = 9.6in

l = 3.2in

w = ?

Substitute the given values into the formula to get the width

138.24 =  9.6*3.2*w

138.24 = 30.72w

w = 138.24/30.72

w = 4.5in

Hence the width of the rectangular prism is 4.5inches

The width of the rectangular pyramid that has a volume of 138.24 cubic inches, a height of 9.6 inches, and a length of 3.2 inches is 4.5 inches.

Volume of a rectangular pyramid:v = lwh

where

l = length

w = width

h = height

v = 138.24 inches³

h = 9.6 inches

l = 3.2 inches

w  = ?

138.24 = 9.6 × 3.2 × w

138.24 = 30.72w

w = 138.24 / 30.72

w = 4.5 inches

learn more on volume of a rectangular pyramid here: https://brainly.com/question/13410734?referrer=searchResults

Convert 36 inches to feet. There are 12 inches in a foot.
A. 432 feet
B. 3 feet
C. 6 feet
D. 360 feet

Answers

Answer:

B

Step-by-step explanation:

36/12=3 feet

B : 3 feet
36 inches • (1 foot/12 inches) = 3

Find the values of x and y. The diagram is not to scale.

Answers

Answer:

51+x-5+y-6=180

x+y=180-51+5+6

X+y=140

Answer x=77 y=63

(those 2 lines with the arrows are perpendicular so their angles are the same 72° and (x-5)=77-5= 72°)

The values of x and y are 77 and 63 respectively.

What is Angle?

Angle is defined as the figure formed by two lines or rays which has a common point of intersection where the angle is formed.

Sum of the interior angles of a triangle is supplementary.

That is three angles (y - 6)°, 72° and an unknown angle is supplementary.

We have two parallel lines given and a transversal line intersects the parallel lines.

So the unknown angle of the triangle and the angle 51° are alternate interior angles and are thus equal.

So the third angle of the triangle = 51°

(y - 6) + 72 + 51 = 180

y - 6 + 123 = 180

y + 117 = 180

y = 63

The angles (x - 5)°, 51° and (y - 6)° are supplementary.

(x - 5) + 51 + (y - 6) = 180

x - 5 + 51 + 63 - 6 = 180

x + 103 = 180

x = 77

Hence the value of x is 77 and the value of y is 63.

To learn more about Angles, click on the link given below :

https://brainly.com/question/28451077

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What is the Reciprocal of 10/3

Answers

Answer: 3/10

Step-by-step explanation:

The reciprocal is the fraction/ number flipped

help ????????!???????????!???????

Answers

Answer:

1/8= 12.50

1/4 =250 apologize for not being able to answer the last one


A car travels 26.35 miles with one gallon of gas. The tank
can hold 21.5 gallons of gas. How many miles can the car
travel on a full tank of gas.
Explain the error in the problem and then solve correctly.

Answers

Answer:

566.525

Step-by-step explanation:

26.35 × 21.5

identificación de la intención del mensaje o del texto leído​

Answers

Answer:

La identificación de la intención del mensaje o del texto leído no es otra cosa que la interpretación del mismo. Es decir, a través de la lectura y la identificación de las diferentes variables comunicativas, el lector realiza un análisis del contenido del texto y lo interpreta, buscando dilucidar la intención que el redactor tuvo al momento de escribir el mensaje o texto en cuestión. La interpretación de textos es fundamental para poder comprender lo que se encuentra redactado, es decir, para poder lograr una total comprensión del texto.

The unit digit in the square of the number 572 is

Answers

Answer:

The unit digit of the square of 572 is 4

Step-by-step explanation:

In this problem, we are expected to tell what number is at the unit position of the square of 572.

firstly, what is the square of 572.

this is gotten as = 572^2

                          =572*572

                          =327184

from the result, the value at the unit position is 4

The unit digit of the square of 572 is 4

Elijah is trying to make extra money on his summer vacation from school. He works two different jobs, earning $8 per hour babysitting and $10 per hour lifeguarding. How much money would Elijah earn in a week in which he worked 3 hours babysitting and 7 hours lifeguarding?

Answers

Answer:

$94

Step-by-step explanation:

8x + 10x =  y

8 (3) + 10 (7) = y

24 + 70 = y

94 = y

Answer with step-by-step explanation:

If he were to work a full week, then 3 hours babysitting × 7 days a week × $8 for work = $168 for babysitting. 7 hours lifeguarding × 7 days a week × $10 for work = $490 for lifeguarding.

The total amount of money that Elijah would earn is $168 + $490 = $658

Hope this helped! (brainliest please)

what is the slope of the line that goes through (0 0) and (6 3)

Answers

Answer:

3/6

Step-by-step explanation:

y2-y1/x2-x1


Which of the following exponential equations shows a reflection over the y-axis, a vertical
stretch by a factor of 2, and horizontal shift right 1.
a. y = -2(4)* – 1
b. y = -2(4):-1
c. y = 2(4)-x-1
d. y = 4(2)-x-1

Answers

Answer:

we are given

parent function as

(1)

vertical stretch of factor 2

so, we can multiply y-value by 2

then a shift right of 3 units

so, we can replace x as x-3

(2)

a shift left by 2 units

we can replace x as x+2

then a horizontal shrink factor of 1/2

so, we can multiply by 2 to x-value

then a shift down of 5 units

we can subtract y-value by 5

so, we get

(3)

a shift to the right 1 unit

we can replace x as x-1

stretched vertically by a factor of 1/2

we can multiply y-value by 1/2

then is shifted down 4 units

we can subtract y-value by 4

(4)

reflected across the x-axis

we can multiply y-value by -1

tretched vertically by a factor of 3

multiply y-value by 3

shifted left 7 units

we can replace x as x+7

Step-by-step explanation:

77777777777777777777777777777

what is y + 1=x in slope intercept form?​

Answers

Answer:

y = x - 1

Step-by-step explanation:

slope intercept form is y = mx+b. (mx - slope, b - y-intercept)

You just subtract 1 from both sides, giving you y = x - 1

what is a thesis statement?​

Answers

Answer:

A thesis statement is a claim

Step-by-step explanation:

The thesis statement is the sentence that states the main idea of a writing assignment and helps control the ideas within the paper. It is not merely a topic. It often reflects an opinion or judgment that a writer has made about a reading or personal experience. For instance: Tocqueville believed that the domestic role most women held in America was the role that gave them the most power, an idea that many would hotly dispute today.

by how much is 7 more than 5​

Answers

Answer:

2

Step-by-step explanation:

Is -0.00992 a rational or irrational number?

Answers

Answer:

Yes, it is a rational number.

Step-by-step explanation:

You're Welcome :)

Answer is rational numer

A line segment has endpoints (4, 7) and (1, 11). What is the length of the segment?

Answers

[tex]length = \sqrt{ ({11 - 7})^{2} + {(1 - 4})^{2} } \\ [/tex]

[tex]length = \sqrt{ ({4})^{2} + ({ - 3})^{2} } \\ [/tex]

[tex]length = \sqrt{16 + 9} [/tex]

[tex]length = \sqrt{25} [/tex]

[tex]length = 5[/tex]

Thanks for watching buddy good luck.

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Find the axis of symmetry for this parabola:
y = -4x2 - 8x - 7

Answers

Answer:

Step-by-step explanation:

If we want to find the axis of symmetry of the parabola of [tex]y=-4x^{2} -8x-7,[/tex] we would use the formula of [tex]-\frac{b}{2(a)}[/tex] to find it.

b=-8

a=-4

so the formula would look like this [tex]-\frac{-8}{2(-4)}[/tex], simplify it >>>[tex]-\frac{-8}{-8}[/tex] which is -1

So -1 would be the axis of symmetry

*It would mean a lot to me if you guys gave this post a "THANKS"

What would E,F,G be? I really need help

Answers

Answer:

e - 50°

f - 65°

g - 115°

Step-by-step explanation:

Both triangles are 180°

So basically just add 50+65 which gives you 115 and that is 'g' cause that is the last missing piece of the left triangle.

how do i check 8d-25=3d

Answers

Answer:

d=5

Step-by-step explanation:

That is the answer if that is what you were looking for.

your welcome

8d-25=3d

8d-3d=25

5d=25

d=5

d=5

8d-25=3d

8(5)-25=3(5)

40-25=15

15=15 so it’s right

Given m∠12 + m∠15=180°

Which lines are parallel, if any must be parallel, based on the given information?

1. c || d by the converse of the alternate interior angles theorem
2. a || b by the converse of the corresponding angles theorem
3. c || d by the converse of the same-side interior angles theorem
4. Not enough information to make a conclusion.

Answers

Answer:

the answer is choice 3

c is parallel to d by the converse of the same side interior angles theorem

Step-by-step explanation:

Answer:

3. c || d by the converse of the same-side interior angles theorem

Step-by-step explanation:

Angles 12 and 15 are same-side interior angles of lines c and d cut by transversal a.

Answer:

3. c || d by the converse of the same-side interior angles theorem

suppose that y varies directly with x and y=10 when x=8. What is x when y=30?

Answers

Y=kx
10 = 8k
10/8 = k
k = 1.25

30 = 1.25x
30/1.25 = x
24 = x
X = 24

4.131313.... as a fraction and a mixed number

Answers

Answer:

 409/99

 4  13/99

Step-by-step explanation:

Hi there !

4.131313.. = 4.(13) = 4  13/99 = (4*99+13)/99 = 409/99

Good luck !

Find
f '(a).
f(x) = 3 − 4x

Answers

Answer:

f'(a) = -4

Step-by-step explanation:

f(x) = 3 − 4x

Take the derivative of the function

f'(x) = -4

f'(a) = -4

63-(-4) subtracting integers

Answers

Answer:

67

Step-by-step explanation:

the negative 4 cancels out with subracting turning it into an addition problem

Hello.

We are subtracting a negative number.

When we subtract a negative number, it cancels itself out, and it becomes an addition problem.

63-(-4) becomes 63+4

63+4 = 67

67 is the final answer.

-9(-2 -9)+(-16)-
——————
-8

Answers

Answer:[tex]-10\frac{3}{8}[/tex]

Step-by-step explanation:

I dont know if the live on the other side of 16 is a mistake but if it is than thats the answer above.

Need help with question 5!!!!! ASAP PLEASE!!!

Answers

Answer:

B. 2-5 the answer is B. 2-5

Answer:

I think b

Step-by-step explanation:

What’s a better buy? 3 pounds of apples for $1.89 or 1 pound of apples for $.79?
WILL MARK BRAINLYIEST ANSWER ASAP PLZ!

Answers

Answer:

3 pounds of apples for $1.89

Step-by-step explanation:

1 pound of apples for $.79

so 3 pound x 0.79= 2.37

So 1.89 for 3pound is the better buy

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