Factorise:a(a-2)-b(b-2)

Answer:

Step-by-step Here is the answer I just did it and answer is 90 degrees

Pls mark me brainlyis would like if yo do that :)

I got it wrong just for enjoy

if square ABCD were Rotated 90 clockwise about the origin to create square A’B’C’D. The measure of angle B  is: D. 90.

Given

ABCD=90 Clockwise

Hence:

Rotation will not change the size and figure

Square ABCD≅ Square  A’B’C’D

m∠B=90°

So,

m∠B'=m∠B=90°

Therefore the correct option is D.

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Answer:

64 units2

Step-by-step explanation:

16 x 8 / 2 =

128 / 2 =

64

Hope that helps!

Answer:

x= -3

Step-by-step explanation:

Answer:

x = -3 hope this help  

Answer:

y = − 6

Step-by-step explanation:

Answer:

Step-by-step explanation:

it is -6x2 not plus

if my answer helps please mark as brainliest.

Answer:

P = 10w

Step-by-step explanation:

Number of point per correct spelling = 10

Number of words spelt correctly = w

Total points, p

P = (number of points per correct spelling * number of words spelt correctly)

P = 10 * w

P = 10w

Answer:

look it up on here someone probably answered it

Answer:

the area of the parallelogram would be 40

to find the area all you need to do it multiply the base by the height. (8×5=40)

Answer:

x = 2 and y = 7

Step-by-step explanation:

We are given two equations:

1.      8x + y = 23

2. −10x  - y = −27

By adding both equations with each other we get:

(1.+2.) -2x = -4

Which can be reduced to:

(1.+2. : (-2)) x = 2

We can insert x in Equation 1. (or 2) and get:

8*2 + y = 23

16 + y = 23         [-16 on both sides]

y = 7

Resulting in x = 2 and y = 7 as a possible solution for this system.

Answer:

Step-by-step explanation:

8x + y = 23

-10x - y = -27

-2x = -4

x = 2

8(2) + y = 23

16 + y = 23

y = 7

(2, 7)

Answer:

x = - 6    

Step-by-step explanation:

Equation

1/3 * (-9x +12) = 22                Multiply both sides by 3

Solution

3 * 1/3(-9x + 12) = 22*3

- 9x + 12 = 66                        Subtract 12 from both sides.

-9x = 66 - 12                         Combine

-9x = 54                                Divide by -9

x = 54/-9

x = - 6

Answer:

2100

Step-by-step explanation:

Answer:

76

Step-by-step explanation:

khan x math

Answer:

5w+15v-30

Step-by-step explanation:

since m is parallel to n, this means that the two angles are alternate angles. Hence, 46°=6x-2

Calculate and you should get x = 8°

Answer:

A and E

Step-by-step explanation:

The perimeter is the length of the edge of the overall shape. In this case, the edge includes the length of the curved section of both semicircles (since semicircles are the same size, we can just find the circumference for a circle with the same radius), plus four side lengths of the square.

The radius is 10 (Two squares line up exactly with the semi-circles).

Circumference: 2πr=2π10=20π

Perimeter =20π+4(10)=40+20π

A

40+20π=40+20π? YES

B

40+20π=80+20π? NO

C

40+20π=120+30π? NO

D

40+20π=300+100π? NO

E

40+20π=10+10+10π+10+10+10π? YES

Answer: Answer (Part A & Part B)

Step-by-step explanation:

Part A ; m<Y= 113-w

Part B ; 14d-19+33+67=180

D= 99/14

Answer:

angle DEC is 45 degrees

Step-by-step explanation:

angle DEC is 45 degrees because it is supplementary to 135 degrees

(with 135 degrees, adds up to 180 degrees)

Answer:

3 and 7

Step-by-step explanation:

because 7 + 3= 10 and 7 x 3= 21

most likey your answers are x=3 and y=7 OR x=7 and y=3

Answer:

-2<x<3

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Answer:

5 miles

Step-by-step explanation:

Hi there!

To find the rate at which Gia can run, you have to divide 4 by 32 to find how many miles she runs per min. When you do that, you get .125 Gia runs .125 miles per min. To find how many miles she runs in 40 min, you multiply .125 by 40 to get 5. This means that Gia runs 5 miles in 40 min.

Hope this helps :)

Answer:

An event with a probability of zero [P(E) = 0] will never occur (an impossible event). An event with a probability of one [P(E) = 1] means the event must occur (a certain event).

Hope it helps!!

9514 1404 393

Answer:

  8) ΔCAB ~ ΔFDE; SSS

  9) ΔMNQ ~ ΔPNO; SAS

  10) ΔDBE ~ ΔABC; SAS

Step-by-step explanation:

8) The side ratios, shortest to longest, are ...

  6 : 8 : 10 = 9 : 12 : 15 = 3 : 4 : 5

so are the same for both triangles. Triangles CAB and FDE are similar by SSS.

__

9) MN/NQ = PN/NO = 6/5 = 12/10. The vertical angles between these corresponding sides are congruent. Triangles MNQ and PNO are similar by SAS.

__

10)  BD/BA = BE/BC = 21/28 = 24/32 = 3/4. The shared angle between the corresponding sides is congruent to itself. Triangles DBE and ABC are similar by SAS.

Answer:

C.

Step-by-step explanation:

I took the test!

From corresponding angles theorem, we can see the 2 angles are equal.

16x+13=18x-1

2x=14

x=7

Done!

Any questions just leave them in the comments and I will answer.

Answer:

Step-by-step explanation:

i think you do 34x + 12

bc it is a same side interior angle and i think that equals 180 and then you

34x+12=180

      -12  - 12

34x=       168

------          ------

34              34

----------------------

i.dk i think it is 5 bc you get 4.98 so you round the 8 and it makes it a 4.10 which is 5

Answer:

5.   y = -x

Step-by-step explanation:

First, you need to find the slope of the line.

[tex]m = \frac{2 - (-3)}{-2 - 3} = \frac{5}{-5} = -1[/tex]

Now, using either point substitute into the point-slope form for a line:

[tex]y - y_{1} = m(x - x_{1} )[/tex]

Using (-2,2) for [tex](x_{1} , y_{1} )[/tex] we get y - 2 = -1(x +2)

y - 2 = -x - 2

y = -x

Answer 5 is the correct answer

Answer:

(5, 1 )

Step-by-step explanation:

Given the 2 equations

3y - 2x = - 7 → (1)

5x + 3y = 28 → (2)

Rearrange (1) expressing 3y in terms of x by adding 2x to both sides

3y = - 7 + 2x

Substitute 3y = - 7 + 2x into (2)

5x - 7 + 2x = 28

7x - 7 = 28 ( add 7 to both sides )

7x = 35 ( divide both sides by 7 )

x = 5

Substitute x = 5 into either of the 2 equations and solve for y

Substituting into (2)

5(5) + 3y = 28

25 + 3y = 28 ( subtract 25 from both sides )

3y = 3 ( divide both sides by 3 )

y = 1

solution is (5, 1 )

Answer:

-(3y-2x= -7)

3y+5x= 28

-3y+2x= 7

3y+5x= 28

7x=35

7x/7= 35/7

x=5

5(5)+3y= 28

25+3y=28

3y= 28-25

3y=3

3y/3=3/3

y= 1

3y-2x= -7

3(1) -2x= -7

3-2x= -7

-2x= -7-3

-2x= -10

-2x/-2=-10/-2

x= 5

chekin

5x+3y=28

5(5)+3(1)=28

25+3=28

28=28

Answer:

46 unit^2

Step-by-step explanation:

Total surface area=2.5*4*2+2*2.5*2+2*4*2=46

Answer:

answer is 0

..................3rd option

Answer:

x=1,y=-1

x3+y3=(1)3+(-1)3=1-1=0

so, answer is (c) 0