I don't understand this​

Given :

Two hockey of same mass.

One is travelling at a speed of 2 m/s.

Other is in rest or 0 m/s.

To Find :

The momentum of  this group of objects.

Solution :

Since , no external force is applied , so momentum will remains same :

Momentum of group of objects ,

[tex]M = mv_1^2+mv_2^2\\\\M = 0.25\times 2^2+0.25\times 0\\\\M=1 \ kg \ m/s[/tex]

Therefore , momentum of the system is 1 kg m/s.

Hence , this is the required solution.

Answer:

Step-by-step explanation:

The distance between to things is how far apart those two things are.

The Distance Formula is

d = √[(x1 - x2)² + (y1 - y2)²]

Midpoint: This is the point that bisects a segment in the middle.

The Midpoint formula is:

M = [(x1 + x2)/2, (y1 + y2)/2]

Angle is a point where two straight lines meet.

Answer:

The answer is b.

Step-by-step explanation:

Just substitute it. :)

3(8+1)+6=33

8+1=9

9*3=27

27+6=33

Answer:

the answer is b or 8

Step-by-step explanation:

just plug all of them and see if it makes sense

Answer:

x = 21

Step-by-step explanation:

Given

16 - x = - 5 ( subtract 16 from both sides )

- x = - 21 ( multiply both sides by - 1 )

x = 21

Answer:

Is it y

Step-by-step explanation:

The width of the rectangle with an area x² = 19x + 12 is (4x + 3).

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

The perimeter of a rectangle is the sum of the lengths of all the sides.

We know the area of a rectangle is (length×widh).

Given, A rectangle has an area of 4x² + 19x + 12 and a length of (x + 4).

∴ width of the rectangle is = (4x² + 19x + 12)/(x + 4).

Or, we know that the product of two linear equations is a quadratic so,

4x² + 19x + 12.

4x² + 16x + 3x + 12.

4x(x + 4) + 3(x + 4).

(x + 4)(4x + 3).

So, the width of the rectangle is (4x + 3).

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Answer:

For question 9 = 54

Step-by-step explanation:

54 + 67 = 121

67 - 54 = 13

Answer:1.)k+2x  2.)54  3.) i think is n+n=145

Step-by-step explanation:

Answer:

82

Step-by-step explanation:

4x9=36x2=72+10=82

Answer:

82

Step-by-step explanation:

Plug in the 9 for s

4(9)2+10

Remember PEMDAS

Parentheses first, then multiply the 2

72+10=82

Answer:

idk p:

Step-by-step explanation:

oof 9:::::::::::::::::::::::::

Answer:

Bijective (I believe)

Step-by-step explanation:

A bijective function, f: X → Y, where set X is {1, 2, 3, 4} and set Y is {A, B, C, D}. For example, f(1) = D.

Answer:

10x

X = Months

10 = letters each month

Answer:

a whole?????

Step-by-step explanation:

The absolute value of any positive number is that number itself.

If you take the absolute value of a negative number, then just erase the negative sign and you have your answer.

The absolute value is never negative. It represents distance from that value to 0 on the number line.

So saying |2.3| = 2.3 means the number 2.3 is exactly 2.3 units away from 0 on the number line.

Another example would be |-7| = 7 showing that from 0 to -7 is 7 spaces.

The required absolute number of 2.3 is also 2.3.

GIven that,
An absolute number of the value 2.3 is to be determined.

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

The absolute number is defined as the outcome of the modulus function is called the absolute number or all natural numbers are examples of absolute numbers.

Here,
For the absolute value,
f(x) = |x|
f(2.3) = |2.3|
(since |x| = x or | -x  | = x )
f( 2.3 ) = 2.3

Thus, the required absolute number of the value 2.3 is 2.3 itself.

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Steps to solve:

x² = 25

~Take the square root of both sides

x = ±5

Best of Luck!

Answer:

[tex]\large\boxed{x=5}[/tex]

Step-by-step explanation:

[tex]x^{2}[/tex] = 25

Find the square root of 25 to find the value of x (get rid of the exponent).

[tex]\sqrt{25}[/tex] = 5

[tex]\large\boxed{x = 5}[/tex]

Hope this helps :)

Answer: A, 6

Step-by-step explanation:

Edg

The center of the circle is at -2 + 5i.

Complex Numbers. Complex numbers are those that are expressed as a+ib, where a and b are actual numbers and I is a fictitious number called a "iota."

Complex numbers are numbers that consist of two parts — a real number and an imaginary number.

Given:

Diameter = –10 – 1 i = (- 10, - 1)

6 + 11 i = (6, 11)

Given that we are aware that these are the diameter's endpoints, it follows that the circle's center is the place that lies midway between the endpoints.

Then,

x = (-10 + 6) / 2

  = - 4 / 2

   = -2

y = (- 1 + 11) / 2

   = 10 / 2

   = 5

Hence, the center is located at (- 2, 5).

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Answer:

k to 6, k over 6.

Step-by-step explanation:

Answer:

k over 6  k to 6  

Step-by-step explanation:

: means to and over   :) please mark brainliest

Answer: the answer is -2

Step-by-step explanation: use slope formula

Answer:

Mark-up percentage is 25%.

Step-by-step explanation:

From the question, the store bought each sled at $32 which is the cost price. The sled was display for sale at $40 apiece.

Mark-up percentage = [tex]\frac{selling price - cost price}{cost price}[/tex] x 100%

But,

selling price - cost price = $40 - $32

                                        = $8

So that,

Mark-up percentage = [tex]\frac{8}{32}[/tex] x 100%

                                  = 0.25 x 100%

                                  = 25%

Therefore, the mark-up percentage is 25%.

Answer:

25%

Step-by-step explanation:

Answer:

B; The second answer

Step-by-step explanation:

The question is asking about the associative property of addition. This involves the rearranging of the parenthesis. If you were to solve the given equation, and solve the the answer, then you will get the same answer. In this property, it says that you will get the same result if you were to move/switch the parenthesis from the values; This means that order doesn't matter.

6(9+5)

Step-by-step explanation:

Answer:

Answer is 9.7

I used calculator

Answer:

A. 16 roses

Step-by-step explanation:

30 - 6 = 24

24 divided by 1.5 equal 16

r = 16

hopefully this helps you :)

pls give me brainlest :)

Answer:

a is the answer because when x⁴ will go up it will be x-4

Answer:

A vertical reflection is given by the equation y=−f(x) y = − f ( x ) and results in the curve being “reflected” across the x-axis. A horizontal reflection is given by the equation y=f(−x) y = f ( − x ) and results in the curve being “reflected” across the y-axis.

Answer:

No

Step-by-step explanation:

f(x)= 4/-x-2

inverse

f-1(x)= -4/x-2

Answer:

c)21

Step-by-step explanation:

"To light a park, luminaries are placed along a length of 100 meters, if the first is placed in meter 1, the next in meter 4, the next in meter 7, and so on. in the following positions a luminary will be placed except in the subway:

a)13 b)19 c) 21 d)28? "

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

Luminaries position:

It makes an AP with the first term of 1 and common difference of 3

The formula for this AP is:

From the given options, only one is not in the same format:

because

Answer is: c) 13

Answer:(5)(10)

Step-by-step explanation:

Answer:

(5)(10)

Step-by-step explanation:

Answer:

The original regular price for the coat is $90

Step-by-step explanation:

The given information in the question are;

The percentage that was off (removed) from the sale price = 30%

The sale price at which Jerry bought the coat = $63

Whereby the regular price = P, we have;

P - 30% of P = $63

P - 0.3×P = $63

P×(1 - 0.3) = $63

0.7·P = $63

P = $63/0.7 = $90

Therefore, the regular (original) price for the coat = $90

The coat regular price at which the coat is displayed is at $90.

Answer:

3000

Step-by-step explanation:

Tony will donates $3000 after 5 years.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

Donated amount= $1000

Tony is able to donate 3/2 times the amount that Theresa donates.

let Theresa donates x dollar each year

So, x+ 3/2x = 1000

5x/2 = 1000

5x = 2000

x= 400

Thus, Tony donate = 3/2 x 400 = $600

Hence, After 5 years Tony will donate= 600 x 5= $3000

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