plz some1 help my sister out ! thank you :)

Answer:

[tex] - 3x - 7(x + 4) \\ = - 3x - 7x - 28 \\ = - 10x - 28[/tex]

hope it helped you:)

Answer:

[tex]-10x-28[/tex]

Step-by-step explanation:

[tex]-3x-7(x+4)[/tex]

Expand by using distributive law: [tex]a(b+c)=ab+ac[/tex]

Therefore,

[tex]-3x-7*x+\left(-7\right)\cdot \:4[/tex]

[tex]-3x-7x-7\cdot \:4[/tex]

[tex]-3x-7x-28[/tex]

Add the x:

[tex]-10x-28[/tex]

Answer:

b) around 6 years

c) around 2,500

Step-by-step explanation:

Answer:

x=6

Step-by-step explanation:

Answer:

Plane SPT and Plane SPV

Step-by-step explanation:

A plane is defined by the set of three points lying on the same (two dimensional) surface.

A plane 'R' has been given in the picture.

Points lying on this plane or surface are S, P, T and V.

Therefore, possible names may be,

SPT, STV, SPV, PTV

From the given options names of the plane R will be,  

Plane SPT and Plane SPV,  

Answer:

the slope is undefined

Step-by-step explanation:

Answer: 7.4

Step-by-step explanation:

3x + 13 = 19

3x = 6

x = 2

Now substitute value of 'x' in the second equation:

2(2) + 1.2(2) + 1

= 4 + 2.4 + 1

= 5 + 2.4

= 7.4

Answer:

7.4

Step-by-step explanation:

The value of X is 2, so 3*2=6   6+13=19

So the second equation is 2*2=4  4+1.2*2=6.4  6.4+1=7.4

Hope this helps =3

Answer: 79

Step-by-step explanation: Lets first deal with the X. The equation would be 3 X 3 X 9. This answer is 81. Next we have 81 - 2. Therefore, our answer is 79. Do multiplacation first as M is before S in peMdaS.

Answer:

79

Step-by-step explanation:

x = 3y and y = 9

This means x = 3*9 = 27

3x -2

3 * 27 -2

81 -2

79

Answer:

Step-by-step explanation:

9x-4= 3x-28

We simplify the equation to the form, which is simple to understand  

9x-4=3x-28

We move all terms containing x to the left and all other terms to the right.  

+9x-3x=-28+4

We simplify left and right side of the equation.  

+6x=-24

We divide both sides of the equation by 6 to get x.  

x=-4

Answer:

A = [tex]\frac{5}{6}[/tex]

Step-by-step explanation:

From the number line attached in the figure,

Number of small parts from number 0 to 1 on the given number line = 6

A is the point which lies at 5th part from 0.

Each small part represents the fraction = [tex]\frac{1}{6}[/tex]

Therefore, A represents the fraction = [tex]5\times \frac{1}{6}[/tex]

                                                             = [tex]\frac{5}{6}[/tex]

So A = [tex]\frac{5}{6}[/tex] will be the answer.

Answer:

$226.57

Step-by-step explanation:

Answer:

a > −6

Step-by-step explanation:

Step 1: Subtract a from both sides.

2a + 6 − a > a − a

a + 6 > 0

Step 2: Subtract 6 from both sides.

a + 6 − 6 > 0 − 6

a > −6

If this is the triangle then it has 3 like the practice if you did it if not three lines of symmetry

Answer:

6.33%

Step-by-step explanation:

4,500/710 6.33

Answer:allen

Step-by-step explanation:

Lin is delivering a package to a place located at (5,3) on the grid.

Which house is getting the delivery?

Answer: Lin's

Lins is getting the delivery

Step-by-step explanation:

All you have to do is follow the directions that are being giving.

Answer:

Does this help

Step-by-step explanation:

A coordinate grid has two perpendicular lines, or axes, labeled like number lines. The horizontal axis is called the x-axis. The vertical axis is called the y-axis. The point where the x-axis and y-axis intersect is called the origin.

Answer:

horizontal

Step-by-step explanation:

Answer:

(-2, -3)

Step-by-step explanation:

If a segment having extreme ends as [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is divided by a point (x, y) in the ratio of m:n,

x = [tex]\frac{mx_2+nx_1}{m+n}[/tex]

y = [tex]\frac{my_2+ny_1}{m+n}[/tex]

Since, a line RT has extreme ends as R(-5, 3) and T(-1, -5) then a point S(x, y) which divides RT in the ratio of 3 : 1 will be,

x = [tex]\frac{3(-1)+1(-5)}{3+1}[/tex]

  = [tex]\frac{-8}{4}[/tex]

  = -2

y = [tex]\frac{3(-5)+1(3)}{3+1}[/tex]

  = [tex]-\frac{12}{4}[/tex]

  = -3

Therefore, coordinates of the point S will be (-2, -3).

Greetings from Brasil

From radiciation properties:

[tex]\large{A^{\frac{P}{Q}}=\sqrt[Q]{A^P}}[/tex]

bringing to our problem

[tex]\large{6^{\frac{1}{3}}=\sqrt[3]{6^1}}[/tex]

The requried radical form of the given expression is ∛6.

Radical form is mathematical expression that represents the value under the nth roots.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,

Following the rule [tex]\sqrt[n]{x} = x^{1/n}[/tex]
Similarly,
[tex]6^{1/3} = \sqrt[3]{6}[/tex]

Thus, the requried radical form of the given expression is ∛6.

Learn more about simplification here:

https://brainly.com/question/12501526

#SPJ2

Answer:

$100

Step-by-step explanation:

you divide 100 by .25 to equal 400 then take 400 - .25 = 100

Answer:

Step-by-step explanation:

what following?

Answer:

Length of new rectangle = (x + 7) inches

Width of new rectangle = (x + 4) inches

Step-by-step explanation:

A rectangle is a quadrilateral that has opposite sides to be parallel and equal. While a square has all its sides to be equal.

Given that: the square has unknown side length x inches.

Increasing one of its length by 4 inches = (x + 4) inches

Increasing the other by 7 inches = (x + 7) inches.

The new lengths results to a rectangle with length (x + 7) inches, and a width of (x + 4) inches.

the label diagram to represent the new rectangle is shown in the diagram attached to this answer.

Answer: m=-5/8

Step-by-step explanation:

Answer:

c is 2,7

Step-by-step explanation:

Step-by-step explanation:

Vertical angles are angles that are directly opposite to each other and are equal in magnitude.

Angles 6 and 8 are vertical angles.

Answer:

B

Step-by-step explanation:

yw

Its not must that 3x have to be the one to be subtracted. You could take 8x as well.

But always subtract from the smaller one (in this case 3x) because its easier.

If you are subtracting 3x-3x and 8x-3x, the equation would be like

4 = 5x - 16

5x = 4+16

5x = 20

x = 4

Answer:

2071

Step-by-step explanation:

let t-16 then you multiple that by 4 and there is your answer 2071

Answer:

A) (1,-2)

Step-by-step explanation:

the answer to a system of equations is where the 2 lines intersect and that would be at (1,-2)