Solve for.x 3x-2(6-x)=7x+2(5+x)-6

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? "

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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

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:

a whole?????

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

f(x)= 4/-x-2

inverse

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

Answer:

Step-by-step explanation:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\d=\sqrt{(1-11)^2+(3-10)^2}=\sqrt{(-10)^2+(-7)^2}=\sqrt{149}\\\\d=12.2065...\approx12.2[/tex]

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:

Is it y

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:

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:

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:

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: the answer is -2

Step-by-step explanation: use slope formula

Problem 2

Plot point L anywhere that isn't on segment JK. Draw a line through point L. I find it helps to make the lines parallel.

Next, use a compass to measure the width of segment JK. Keeping this same width, transfer the nonpencil end of the compass to point L. Draw an arc that crosses the line through L.

Mark this intersection point M. Lastly, use a pen or marker to form segment LM and erase everything else of that line.

======================================================

Problem 3

The ideas of the previous problem will be used here. We copied segment JK to form congruent segment LM. So JK = LM.

The same steps will be used to form segment GN where GN = EF. In other words, segment GN is a perfect copy of segment EF.

If you repeat these steps again, you'll get another segment of the same length. This segment goes from point N to point H. So NH = GN = EF

Then we can say,

GH = GN + NH

GH = EF + EF

GH = 2*EF

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

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:

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.

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:

f(x+6)= 3x + 30

Step-by-step explanation:

Whenever you have to evaluate a function with a certain value, replace the variable x with a certain value. In this case, substitute x with the value of (x+6). You get the equation f(x+6)= 3(x+6) + 12, which simplifies into f(x+6)= 3x + 18 +12, which further simplifies into f(x+6)= 3x + 30.

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:

negative

best of luck!

The sign of the expression is Negative, the correct option is B.

An expression is a mathematical statement which consists of variables, constants and mathematical operators.

The expression is

39 11/13 + (-41 1/13)

[tex]=\rm 39\dfrac{11}{13} -41\dfrac{1}{13}\\\\=\dfrac{518}{13} - \dfrac{534}{13}\\\\=\dfrac{ 518 - 534} {13}\\\\=\dfrac{ -16}{13}\\\\=- 1 \dfrac{3}{13}[/tex]

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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:

Answer is 9.7

I used calculator

Answer:

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

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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6(9+5)

Step-by-step explanation:

Answer:(5)(10)

Step-by-step explanation:

Answer:

(5)(10)

Step-by-step explanation:

Answer:

10x

X = Months

10 = letters each month

Answer: A, 6

Step-by-step explanation:

Edg