What is the correct answer? I never learned this in school

What Is The Correct Answer? I Never Learned This In School

Answers

Answer 1

Answer:

option D

Step-by-step explanation:

M and N cannot be added because they have different order.

Note : For adding and subtracting two matrices their order must be same.


Related Questions

which is equivalent to 6.253×10-2​

Answers

Answer:

60.53 is equivalent to this number.

5. The points (2, 4) and (6,7) lie on a line. What is the slope of the line? A. 2 B. 1 C. 4/3 D. 3/4​

Answers

The answer is D. 3/4

I hope this helped good luck!

Work out the sizes of the ANGLES

Answers

Answer:

r = 55°, s = 25°, t = 30°

Step-by-step explanation:

The sum of the interior angles of a quadrilateral = 360°

Sum the 4 angles in the top quadrilateral and equate to 360

r + 100° + 110° + 95° = 360°

r + 305° = 360° ( subtract 305° from both sides )

r = 55°

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the 2 angles from 180° in the left triangle for s

s = 180° - (100 + 55)° = 180° - 155° = 25°

Similarly for the triangle on the right for t

t = 180° - 95 + 55)° = 180° - 150° = 30°

Answer:

Step-by-step explanation:

In quadrilateral ADEF

r + 95 +100 +110 = 360  {Sum of all angle of quadrilateral}

               r + 305 = 360

                        r = 360 -305

r = 55

In triangle AEC,

r + 95 + t = 180

55 + 95 + t = 180

    150 + t = 180

             t = 180 -150

t = 30

In triangle ABD,

r +s + 100 = 180

55 + s + 100 = 180

      s + 155 = 180

            s = 180 - 155

s = 25

helpppppppppppp!!!!!!!!!!!!!!

Answers

Answer:

480N

Step-by-step explanation:

answer is in photo above

What is cosθ = _____ based on this image
a)-3/5
b)-4/3
c)-4/5
d)-3/4

Answers

A yes b no c no d yes

LABC measures 90° and ZABD measures
25. What is the measurement of ZDBC?

Answers

Answer: The measurement of angle DBC is 65 degrees

Step-by-step explanation:

Line BD splits ABC into two angles ABD and DBC.

If ABC is 90 then the measures of ABD + DBC will be 90. Since we know the measure of ABD we can make this equation and solve it

[tex]90=25+x\\90-25=25+x-25\\65=x[/tex]

(x+y,x-2y)=(4,1), find x and y

Answers

Answer:

x =3 and y =1

Step-by-step explanation:

( x+y , x-2y) = (4 , 1)

compare their corresponding elements

x+y = 4

y = 4 - x         equation (i)

x-2y =1

substitute the value of x

x - 2(4 - x) =1

x - 8 + 2x =1

3x = 1 +8

x = 9/3

x = 3

Now substitute the value of x in equation (i)

y = 4 - x

y = 4 - 3

y = 1

Answer:

x = 3, y = 1

Step-by-step explanation:

Equate the x and y coordinates of the given points

x + y = 4 → (1)

x - 2y = 1 → (2)

Subtract (2) from (1) term by term to eliminate x

0 + y - (- 2y) = 4 - 1

y + 2y = 3

3y = 3 ( divide both sides by 3 )

y = 1

Substitute y = 1 into (1) for corresponding value of x

x + 1 = 4 ( subtract 1 from both sides )

x = 3

a bicycle travels at a velocity of -2.33m/s and has a displacement of -58.3m how much time did it take??

Answers

Answer:

25.02 s

Step-by-step explanation:

velocity = distance/time

rearrange for time:

time = distance/velocity

time = -58.3m/-2.33 m/s

time = 25.02s

Handel and Charles plan to rent one of the two community garden spaces shown. Space A rents for $1.50 per square unit, and Space B rents for $1.25 per square unit.

Answers

Answer:

Yesaahhauehwusbwubsauwi8whbwuwbwuwbwjbw

WORTH 25 POINTS!!!!
match the following

Answers

Answer:

Step-by-step explanation:

Domain of a function is defined by the set of x-values (input values) and Range is the set of y-values (output values) of the function.

1). The range and domain of P = {(x, y)| y = 3}

Domain: Set of all real numbers

Range: {y: y=3}

2). The domain set of C = {(2, 5), (2, 6), (2, 7)}

 Domain: {2}

3). The range set of E = {(3, 3), (4, 4), (5, 5), (6, 6)}

  Range: {3, 4, 5, 6}

4). The range and domain set of F = {(x, y)| x + y = 10}

   Domain = Range = {All real numbers}

Find the area of the shaded region.

Answers

Answer:

[tex]48\pi\\\approx 150.796[/tex]

Step-by-step explanation:

1.Approach

To solve this problem, find the area of the larger circle, and the area of the smaller circle. Then subtract the area of the smaller circle from the larger circle to find the area of the shaded region.

2.Find the area of the larger circle

The formula to find the area of a circle is the following,

[tex]A=(\pi)(r^2)[/tex]

Where (r) is the radius, the distance from the center of the circle to the circumference, the outer edge of the circle. ([tex]\pi[/tex]) represents the numerical constant (3.1415...). One is given that the radius of (8), substitute this into the formula and solve for the area,

[tex]A_l=(\pi)(r^2)\\A_l=(\pi)(8^2)\\A_l=(\pi)(64)[/tex]

3.Find the area of the smaller circle

To find the area of the smaller circle, one must use a very similar technique. One is given the diameter, the distance from one end to the opposite end of a circle. Divide this by two to find the radius of the circle.

8 ÷2 = 4

Radius = 4

Substitute into the formula,

[tex]A_s=(\pi)(r^2)\\A_s=(\pi)(4^2)\\A_s=(\pi)(16)[/tex]

4.Find the area of the shaded region

Subtract the area of the smaller circle from the area of the larger circle.

[tex]A_l-A_s\\=64\pi - 16\pi\\=48\pi[/tex]

[tex]\approx150.796[/tex]

True or False: in a table of a proportional relationship, the ratio or y/x is constant.

Answers

Answer:

true

Step-by-step explanation:

It is True that in a table of a proportional relationship, the ratio or y/x is constant.

What is a proportional relationship?

It is defined as the relationship between two variables when the first variable increases, the second variable also increases according to the constant factor.

It is given that, y∝x

In order to eradicate the proportional sign introduces the constant as,

y=kx

k=y/x

k is the constant value.

Thus, it is True that in a table of a proportional relationship, the ratio or y/x is constant.

Learn more about the proportional here:

brainly.com/question/14263719

#SPJ2

can someone pls help for brainlest

Answers

Answer:

12.56 in ^2

Step-by-step explanation:

First find the area of a circle with radius 4

A = pi r^2

A = (3.14) 4^2

A =50.24

Since it is 1/4 of a circle, multiply by 1/4

1/4 ( 50.24)

12.56

Answer:

Quarter circle's area is 12.56 inches².

Step-by-step explanation:

Concept:- Firstly, we need to find the area of circle and Since, it is quarter of circle we need to multiply the area of circle by 1/4. and we get answer

✯ Solution ✯

Finding area of circle

Using Formula

Area of circle = π × r ²

Where,

r ,is the radius of circle

And we have given

Radius, r of circle is 4 in.Value of π is 3.14

Substitute the value into the formula

Area of circle = 3.14 × ( 4 in. )/²

now,

Area of circle = 3.14 × 16 in ².

multiply , we get

Area of circle is 50.24 nches ²

As have to find the quarter circle's area ,

and we know that quarter is the one fourth of the circle .

Quarter circle's area = Area of circle × 1/4

Multiply , we get

Quarter circle's area = 50.24 × 1/4

Therefore, quarter circle's area is 12.56 inches².

45
24
K K
AM
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17
15

8
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8
17

Answers

Hope this help!!!

Have a nice day!!!!

What is the value of X in the figure below? In this diagram ∆ABD is similar to ∆CAD.

Answers

Answer:

F. 45/4

Step-by-step explanation:

Corresponding sides have same ratio:

AB/AC = BD/AD

Find AB:

AB = [tex]\sqrt{20^2-15^2} = 5\sqrt{7}[/tex]

Find AD:

AD = √15²-x²

Now the ratio:

5√7/15 = (20 - x)/√(15²-x²)√7 *√(225-x²)= 3(20 - x)7(225 - x²) = 9(20 -x)²7*225 - 7x² = 9(400 - 40x + x²)1575 - 7x² = 3600 - 360x + 9x²16x² - 360x + 2025 = 0(4x)² - 2*4x*45 + 45² = 0(4x - 45)² = 04x - 45 = 04x = 45x = 45/4

Correct choice is F

area of irregular figures

uhmmm

Answers

Answer:

146

Step-by-step explanation:

4×12+5×10+4×12=146

if k=100-4n
what is the value of n when k is 99

Answers

Answer:

1/4

Step-by-step explanation:

when k=99

=>99=100-4n

=>4n=100-99

=>4n=1

=>n=1/4

The radius of a circle is 6 meters. What
is the circle's area?

Answers

Answer:

A = 36 pi m^2 or approximately 113.04 m^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

The radius is 6

A = pi 6^2

A = 36 pi m^2

Using the approximation of 3.14 for pi

A =113.04 m^2

Answer:

A≈113.1

Step-by-step explanation:

A=πr^2=π·6^2≈113.09734

convert 1/2 by decimal​

Answers

Answer:

1/2

= 0.5

Step-by-step explanation:

this is very easy

Look at the number line below. Write the letter for each fraction in the correct box. ​

Answers

Answer:

DCAB

I arranged in increasing order

Answer:

DCAB

Step-by-step explanation:

[tex]A = \frac{2}{5} = 0.40\\\\B= \frac{2}{3} = 0.66\\\\C= \frac{1}{4} = 0.25\\\\D =\frac{1}{10} = 0.10[/tex]

So moving from least to highest DCAB

3) -7x - 3x + 2 = -8x - 8

Answers

-7x-3x= -10x

-10x+2=-8x-8

-10x+8x+2=-8

-2x+2= -8

-2x = -8 + 2

-2x= -6

X= -6/-2

X= 3

PLEASE HELP. !!!!!!!!!!

Answers

the answer is 50 because ST and RT are equal

Solve the system. Tell how many solutions the system has.

Answers

Answer:

one

Step-by-step explanation:

the answer is one

i hoped this help

Four months ago, Cynthia signed up to receive email notifications to remind her to change her contact lenses,
Cynthia's first email arrived 9 days after she set up the notifications, and her second email arrived 14 days after
the first. Emails continued to arrive every 14 days.
Assuming n is a positive integer, which function gives the number of days, c(n), after Cynthia set up the
notifications that her nth email arrived?

Answers

Answer:

I think 14n + 9

Step-by-step explanation:

since she got her first email in 9 days and got her second email 14 days later, and it continues to appear every 14 days.

so I think it must be 14n + 9

i think the answer is c


139°
x° find the value of x.


Answers

Answer:

x = 139

Step-by-step explanation:

The angles are alternate exterior angles , and when the lines are parallel, alternate exterior angles are equal

x = 139

What’s the answer Answer???

Answers

Answer:

B.

Step-by-step explanation:

I might have gotten this wrong but my mind was telling me it was B hope this helped.

Thanks for your time.

(>.<) <3 Kris

The sum of digits in a two-digit number is 7. If the digits switch place you get a number bigger by 27. What's that number?

Answers

Step-by-step explanation:

the solution is found in the images above

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP



Answers

Answer:

i think its C if i may be correct

ILL BRAINLIEST YOU IF YOU HELP ME PLEASE

Answers

option C is correct

b and c are parallel lines because they both are making equal angles at the point of intersection with line d

Answer:

the answer is c. because

95 plus 85 is equal to 180 mean its straight line

Step-by-step explanation:

HELP ASAP!
The graphs below have the same shape. f(x) = x2.
What is the equation of the graph of g(x)?

Answers

Answer:

A

Step-by-step explanation:

Given the graph of f(x) then f(x + a) is a horizontal translation of f(x)

• If a > 0 then a shift to the left of a units

• If a < 0 then a shift to the right of a units

Here g(x) is the graph of f(x) shifted 3 units to the left, then

g(x) = (x + 3)² → A

Answer:

A

Step-by-step explanation:

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