Could you guys lo? I just don’t get it

Answer:

Step-by-step explanation:

3(r-12)=15

3r-36=15

3r=51

r=17

Answer:

17

Step-by-step explanation:

3(r-12)=15

3*r - 3*12 =15

3r -36 =15

3r -36 +36 = 15+36

3r =51

3r/3 = 51/3

r= 17

The result after simplifying the expression is [tex]\frac{12}{x^2-2x-8}[/tex]

Given the difference of function expressed as:

[tex]\frac{x^2-3x+2}{x^2-5x+4} -\frac{x^2+10x+24}{x^2+8x+12} \\[/tex]

Factorize the quadratic equations:

[tex]=\frac{x^2-2x-x+2}{x^2-4x-x+4} -\frac{x^2+4x+6x+24}{x^2+6x+2x+12} \\=\frac{x(x-2)-1(x-2)}{x(x-4)-1(x-4)} -\frac{x(x+4)+6(x+4)}{x(x+6)+2(x+6)}\\=\frac{(x-1)(x-2)}{(x-1(x-4)} -\frac{(x+6)(x+4)}{(x+2)(x+6)}[/tex]

Cancel out the common terms:

[tex]\frac{(x-2)}{(x-4)} -\frac{(x+4)}{(x+2)}[/tex]

Find the LCM of the resulting expression

[tex]=\frac{(x-2)}{(x-4)} -\frac{(x+4)}{(x+2)}\\=\frac{(x+2)(x-2)-[(x-4)(x+4)]}{(x-4)(x+2)} \\=\frac{x^2-4-(x^2-16)}{(x-4)(x+2)} \\=\frac{x^2-4-x^2+16}{(x^2+2x-4x-8)}\\=\frac{12}{x^2-2x-8}[/tex]

Hence the result after simplifying the expression is [tex]\frac{12}{x^2-2x-8}[/tex]

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Answer:

The biggest number usable is 34

Step-by-step explanation:

x + (1/2 x + 8)  ≤  59            Remove the brackets

x + 0.5x + 8 ≤ 59                Combine

1.5x + 8 ≤ 59                        Subtract 8

1.5x  ≤ 59 - 8                        Combine

1.5x ≤ 51                               Divide by 1.5

1.5x/1.5 ≤ 51/1.5

x ≤ 34  

Answer:

65 feet

Step-by-step explanation:

That's what I think, I really don't know so don't count on it.

Answer:

C. 91.9 feet.

Step-by-step explanation:

Answer:

y = (5/4)x + 3/4

Step-by-step explanation:

You are given 5x - 4y = -3 and are asked to rewrite it in slope-intercept form y = mx + b.

Start by subtracting 5x from both sides.  This leaves you with -4y on the left and -3 - 5x on the right:  -4y = -3 - 5x.

Next, divide both sides by -4 to isolate y:

       -3 - 5x

y = --------------      This can be rewritten as y = (5/4)x + 3/4 (in y = mx + b form).

           -4

Answer:

no se ve

Step-by-step explanation:

Answer:

{-1,7}

Step-by-step explanation:

1/2 | 5x-15| = 10

Multiply each side by 2

1/2 *2 | 5x-15| = 10*2

| 5x-15| = 20

Absolute value equations have two solutions, one positive and one negative

5x-15 = 20     5x-15 = -20

Add 15 to all sides

5x-15+15 = 20+15          5x-15 +15 = -20+15

5x= 35                                   5x=-5

Divide by 5

5x/5 = 35/5                              5x/5 = -5/5

x=7                                                   x=-1

Answer:

the answer to the first question is B.

Step-by-step explanation:

Answer: I'm pretty sure the answer is B

Step-by-step explanation: Because.. it's not a function if it intersects the line more than one, and Graph B only intersects it once.

It's on the picture......................

Answer:

0

Step-by-step explanation:

→ State the slope formula

( y₂ - y₁ ) ÷ ( x₂ - x₁ )

→ State each value

x₁ = 3, y₁ = 18, x₂ = 0 and y₂ = 18

→ Substitute in each value into the formula

( 18 - 18 ) ÷ ( 0 - 3 )

→ Simplify

0

Answer:

Ratio of roses to all flowers:

7:11

Ratio of daisies to all flowers :

4:11

Ratio of roses to daises:

7:4

Answer:

a = - 1, b = - 3, c = - 5, d = - 6

Step-by-step explanation:

Substitute the appropriate values of x into the equation and evaluate

x = - 3 : y = - (- 3) - 4 = 3 - 4 = - 1 → a

x = - 1 : y = - (- 1) - 4 = 1 - 4 = - 3 → b

x = 1 : y = - 1 - 4 = - 5 → c

x = 2 : y = - 2 - 4 = - 6 → d

Answer:

Step-by-step explanation:

[tex]f(x) = -x-4\\f(-3)=-1\\f(-1)=-3\\f(1)=-5\\f(2)=-6[/tex]

Answer:

hi sorry its 60 inces

Step-by-step explanation:

Answer:

[tex]4n^{2}[/tex]-4n+1

Step-by-step explanation:

hopfully this is what you were looking for

Answer:

9/2 or it can also be 4½ if not wrong.

also 4.5

Answer: x = 4.5

Step-by-step explanation:

that or 9/2 or 4 1/2 !

Answer:

222222222222222222

Step-by-step explanation:

Answer:

Silver bikes

Step-by-step explanation:

1 orange bike = 3 silver

4 organ bikes = 12 silver

Lol I said organ

Nobody is laughing :l

Answer:

13

Step-by-step explanation:

Find y-int of table m=11-2 = 9 2 = 9 (-5)+b. 10-(-5) 15. What is the value of x in the equation shown below? 2(x + 8) - 4x = 10x + 4 solve for X.

13 pages

Answer:

9881374324

Step-by-step explanation:

Answer:

y=-9x-10

Step-by-step explanation:

First, start by putting the first equation into slope intercept form:

y=-9x+5

We know that in the standard slope intercept formula (y=mx+b), m is the slope and b is the y intercept. Thus, line with the same slope as the one above would have a slope of -9.

To have the same y intercept as y=-8x-10, the y intercept would have to be -10.

Therefore, the formula would be y=-9x-10

Answer:

y = - 6/5x + 8/9

Step-by-step explanation:

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

Where:

m: It is the slope of the line

b: It is the cut point with the y axis

We have the following equations:

Equation 1:

By definition, if two lines are perpendicular then the product of their slopes is -1:

Equation 2:

Finally, the requested equation is:

Answer:

perpendicular bisector of AB

Step-by-step explanation:

If a point is on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment.

so perpendicular bisector of AB

Answer:

  A: 2 1/2 ft^2/h

  B: 3 1/3 ft^2/h

  B has the greater rate

Step-by-step explanation:

The rate in square feet per hour is found by dividing square feet by hours.

Machine A:

  (5/8 ft^2) ÷ (1/4 h) = (5/8)×(4/1) ft^2/h = 5/2 ft^2/h = 2 1/2 ft²/h

Machine B:

  (2/3 ft^2) ÷ (1/5 h) = (2/3)×(5/1) ft^2/h = 10/3 ft²/h = 3 1/3 ft²/h

Machine B has the greater rate.

Answer:

m=0

Step-by-step explanation:

[tex]m=\frac{Rise}{Run}=\frac{y_1-y_0}{x_1-x_0}=\frac{5-5}{7-(-8)}=0\\m=0[/tex]

Answer:

6

Step-by-step explanation:

24/4=x

x=24/4

24 divided by 4 is 6 because 6 times 4 is 24

Parallelogram EFGH  has vertices at E(-1, 4), F(-1, 6), G(3, 3) and H(3, 5)

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

If point A(x , y) rotated about the origin by angle 90°, then its image is A'(-y , x).

The parallelogram ABCD has vertices at A(4,1), B(6, 1) C(3, -3) and D(5, -3).

Hence the transformation EFGH = Ro 90° ( ▱ ABCD), gives:

E(-1, 4), F(-1, 6), G(3, 3) and H(3, 5)

Parallelogram EFGH  has vertices at E(-1, 4), F(-1, 6), G(3, 3) and H(3, 5)

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Answer:

Here are some screenshots from my study guides on this, maybe they can help you.

Answer:

slope intercept form is y=mx+b

Step-by-step explanation:

y= y cordinate point

x= c cordinate point

m= slope (rise over run)

b= y intercept (where a line intercepts the y axis)