Someone pls help me with this question!!!!!!!

Answer:

20

Step-by-step explanation:

Answer:

20:25

Step-by-step explanation:

add how many parts (4+5=9)

45/9=5

4*5=20, 5*5=25

therefore, 20:25

Answer:OK ILL HELP

Step-by-step explanation:Combine  

1

2

and  

x

.

y

=

x

2

−

3

Answer:

5 m²

Step-by-step explanation:

please mark me as brainliest

Answer:

A 763cm

Step-by-step explanation:

Answer:

∠7 = 85°

Step-by-step explanation:

∠1 = 180 - 115 = 65°              Because they are supplementary angles

∠2 = 180 - 65 - 85 = 30°      Because the sum of all interior angles in a triangle

                                             equals 180°

∠3 = 90°                               given

∠6 = 180 - 90 - 30 = 60°      Because they are supplementary angles

∠4 = 180 - 155 = 25°             Because they are supplementary angles

∠5 = 180 - 25 - 60 = 95°      Because the sum of all interior angles in a

                                             triangle equals 180°

∠7 = 180 - 95 = 85°              Because they are supplementary angles

Answer:

Congruent by SSS

!!!!!!!

Answer:

$840 for a dozen

Step-by-step explanation:

Find out the cost for one book. Then multiply that number by 12 (dozen).

Answer:

840

Step-by-step explanation:

490 ÷ 7 = 70

70 x 12 = 840

Answer:

The puck changes direction at  

✔ (25, 0)

The puck goes into the opponent’s score zone located at  

✔ (50, 20)

because the graph is  

✔ symmetric

Step-by-step explanation:

i got it right

Answer:

A) (25,0) B) (50,20) C) Symmetric

Step-by-step explanation:

got it 100% right jus took the test....

Answer:

Step-by-step explanation:

the solutions are options: 2, 3, 4

Answer:

Step-by-step explanation:

Division by zero is undefined, so the only restriction on the domain, the values of x is that x cannot equal 9. So the domain is all real numbers except 9. Or in interval notation

x=(-oo,9),(9,+oo)

Answer:

All real numbers

Step-by-step explanation:

y = (x+1)(x-9)

y = x² - 8x - 9

There are no asymptotes, restrictions of x, or holes.

9514 1404 393

Answer:

  ∠C = 48°

Step-by-step explanation:

The two triangles are congruent by ASA. (The common side BD is between the angles marked congruent.) This means angles A and C have the same measure.

Angle A plus the two given angles will total 180°.

  ∠A = 180° -70° -62° = 48°

  ∠A = ∠C = 48°

Answer:

c=48°

Step-by-step explanation:

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

Answer:

i need help please with my maths

Step-by-step explanation:

The answers are 3 and -13

You need to plug 3 and -5 into x

By doing this, you get :

12 - 3^2       and

12 - (-5)^2

those expressions equal

12 - 9

12 - 25

So you get

3

-13

Answer:

17

Step-by-step explanation:

3 x 4 = 12 + 5 = 17

Answer:

A river?

Step-by-step explanation:

Answer:

x = 55

y = 45

Step-by-step explanation:

In similar triangles, the ratio between similar sides are the same. So,

AB/ED = BC/EF = AC/DF

Substitute values that they give

6/15 = 18/y = 22/x

Solve 6/15 = 18/y by cross-multiplying

6y = 15*18 = 324

Divide both sides by 6

y= 45

Solve 6/15 = 22/x by cross-multiplying.

6x = 22*15 = 330

Divide both sides by 6.

x = 55

Because there is some dispute between the answers, let's check the ratios.

6/15 = 18/45 = 22/55

0.4 = 0.4 = 0.4

True, x = 55 and y=45

since triangle abc~ def

their sides will be proportional

AB/de=ac/df

6/15=22/x

doing crisscrossed multiplication

6x=22×15

x=22×15/6=55

again

AB/de=BC/EF

6/15=18/y

doing crisscrossed multiplication

6y=15×18

y=15×18/6=15×3=45

Answer:

C

Step-by-step explanation:

180 - 118 = 62

Hopefully this helps- let me know if you have any questions

Answer:

B

Step-by-step explanation:

I learned this a while ago, if you have the < symbol then you shade below the dotted line. You can get the rest.

Answer:

A or B! Im not sure which one but B

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Answer: No

Step-by-step explanation: plz mark me brainliest. EF are 5 lengths away from each other and FG is 15 so no

Answer:

The ideal equation form to write this in would be "y=mx+b" because it involves a starting amount (which is represented by "b") and a certain constant amount of something ("m") being fed into that starting amount over time ("x" which will be substituted for "w" because the math problem wants us to substitute). Plugging in the number's you get:

y=30w+200

Step-by-step explanation:

y---> total amount saved after plugging in all numbers including time

m--> amount of money/stuff being added to the starting point over time

x---> can represent time, or basically any independent variable that decides how long has the stuff been being fed into the overall number

b---> the starting point (in this case it is 200, in other cases it can be anything, even a negative number)

Have a wonderful day!

Stay safe, stay loved, stay blessed. :)

Answer:

23mm

528 mm^2

Step-by-step explanation:

The area of a rectangle is given as  the product of its length and width.

Given that 12x²+17x-5mm² is the area

factorize

12x²+17x-5 = 12x²+20x -3x-5

= 4x(3x+5)-1(3x+5)

= (3x+5)(4x-1)

For the rectangle to be a square, it means that the sides 3x+ 5 and 4x - 1 are equal. Hence

3x + 5 = 4x -1

collect like terms

3x - 4x = -5 -1

-x = -6

x = 6

substitute into the sides

3x + 5 = 3(6) + 5 = 23

4x -1 = 4(6) - 1 = 23

The area of the square which is a product of the sides

= 23 * 23

= 529

After solving the equations, the cost of parasailing will be 99.75 and the cost of surfing will be equal to 75.25.

Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both.

Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.

The given information in the question is,

Assume the cost of parasailing is x and the cost of surfing is y.

x + y = 175

Total number of people in Parasailing = 16 people

Total number of people in Surfing = 20 people

Total collection done by resort = $3,101

16x + 20y = 3,101

So, the equations will be,

16x+20y=3,101            (i)

x + y = 175                  (ii)

Now, multiply the equation (ii) by 16 and solve the equation,

16x+20y=3,101

16x+16y= 2,800

4y = 301

Now, find the value of y,

y = 301/4

y = 75.25

Then, the value of x will be equal to,

x + y = 175

x+75.25 =175

Solve for x:

x=175-72.25

x = 99.75

To know more about expression:

https://brainly.com/question/14083225

#SPJ2

It seems that your question is not complete, the complete question should be:

A vacation resort offers surfing lessons and parasailing. If a person takes a surfing lesson and goes parasailing, she will pay $175. There are 16 people who go parasailing and 20 people who take surfing lessons. On a Friday, the resort collects a total of $3,101 for activities. How much does each activity cost?

Step-by-step explanation:

As you can see kanchan bought a item for ₹2000 but she sold it for ₹1950 but the rate of the item she sold it for is less than the item she bought....so its 50% loss.....hope this helps..

if you click the image it will show you how to solve the equation. and give you the answer.

Answer:

Area is 1384.74

Circumference is 131.88

Step-by-step explanation:

42 ÷ 2 = 21

21 = radius

C=2(pie sign lol)r

2×3.14×21

131.88 ^

A= 3.14r^2

21×21 = 441

3.14×441

1384.74^