Solve for y.

–0.8y + 5.49 = –19.86 − 2.3y

y =

Answer: x < 25

Step-by-step explanation:

2/3(x+2)-1/2(x-4)>1/4(x+5)

2/3x+4/3-1/2x+2>1/4x+5/4

Multiply both sides by 12

8x+40-6x>3x+15

2x+40>3x+15

2x-3x>15-40

-x > -25

x<25

Answer:

{x:x=[[3,4,5,6...]}

Step-by-step explanation:

x∈W

[tex]\frac{2}{3}(x+2)-\frac{1}{2}(x-4)>\frac{1}{4}(x+5)\\\frac{2x+4}{3}-\frac{x+4}{2}>\frac{x+5}{4} \\\frac{2(2x+4)-3(x+4)}{2*3}>\frac{x+5}{4} \\\frac{4x+8+3x-12}{6}>\frac{x+5}{4} \\\frac{x}{y} \frac{x-4}{6}>\frac{x+5}{4}\\ 4(x-4)>6(x+5)\\ 4x-16>6x+30\\ 4x-6x>30+16\\ -2x>46\\ x<-23\\x= no solution[/tex]

Answer:

Step-by-step explanation:

x^2+4x+4=x²+2x+2x+4

=x(x+2)+2(x+2)

=(x+2)(x+2)

=(x+2)²

side length=x+2 meters

Answer:

he first step is to write the ratios as fractions.

The next step is to use a  

✔ common denominator

to rewrite the fractions.

Finally, compare the  

✔ numerators

to help you order the ratios.

Step-by-step explanation:

1. Common denominator

2. Numerators

Answer:

a)

side a is opposite, side b is adjacent, side c is hypotenuse

b)

side a is adjacent, side b is opposite, side c is hypotenuse

Step-by-step explanation:

Answer:

Hhhhhhh

Step-by-step explanation:

Huhhhhhgg

Answer:

=10

Step-by-step explanation:

1: Add the numbers

2: Factor the numbers

3: Apply radical rule

Answer: =10

Hope this helps.

Answer:

10

Step-by-step explanation:

ok

Answer:

7

Step-by-step explanation:

3x- 1/9y = 18

value of x when y is 27

3x- 1/9*27 = 18

3x- 3 = 18

3x = 18 + 3

3x = 21

x= 21/3

x = 7

Hope this helps you!

Answer:

x = 7

Step-by-step explanation:

3x-1/9(27) = 18

x = 21/3

=7

Answer:

Step-by-step explanation:

We can write an equation to represent this problem.

(15 + w)(20 + w) = 1/2 (15)(20)

Foil out the left side of the equation.

300 + 35w + w^2 = 150

Subtract 150 from both sides.

w^2 + 35w + 150    (I rearranged it to be in the form that is most efficient)

Now solve for variable w using the quadratic equation (look up the formula if necessary)

[-35 +_ (square root of the value of 1225-600)] / 2

[-35 +_ (SqRt of 625)] /2

(-35 +_ 25) /2

=  -30, -5

I just realized that it can't increase by a negative number, so I'm not really sure of the answer. Sorry, my bad. However, I feel that this may be of help to other people anyway, so I think I'll leave it up here. Apologies again.

Feel free to read through my reasoning behind my answer, and see if it gives you any ideas or inspiration for solving this problem.

Answer:

Step-by-step explanation:

You have to know some basics of parabolas to get this far in your math class, so hopefully you do, and what I'm about to do and say is not new or surprising to you.

If you plot the center (0, 0) which is your h and k, and then plot the focus, you should know that, since the parabola wraps itself around the focus, this parabola opens to the left. There is a work form and a standard form for a left-opening parabola. The work form will be

[tex]x=-a(y-k)^2+h[/tex] and the standard form will be

[tex]-(y-k)^2=4p(x-h)[/tex]

We will figure out what we need and will fill in both of these forms.

In general, the value of p is a distance; namely, it is the distance from the center to either the focus or the directrix (which is the same for both since the focus and the directrix are the same distance from the center, one on either side of it). From this we can determine that, since the focus is one unit away from the center, p = 1. Now that we know p we can find |a|:

[tex]|a|=\frac{1}{4p}[/tex]

Since p = 1, then [tex]|a|=\frac{1}{4}[/tex]

Now we can write the work form:

[tex]x=-\frac{1}{4}(y-0)^2+0[/tex] which of course simplifies to

[tex]x=-\frac{1}{4}y^2[/tex]

And remember we have the p value for the standard form:

[tex]-(y-0)^2=4(1)(x-0)[/tex] which simplifies a bit to

[tex]-y^2=4x[/tex] and when we solve for x:

[tex]x=-\frac{1}{4}y^2[/tex] which is the exact same as the work form!!! Look at that! : )

Answer:

5

Step-by-step explanation:

[tex]\dfrac{x}{x-2}=\dfrac{2x+5}{2x-1}\\\\x(2x-1)=(x-2)(2x+5)\\\\2x^2-x=2x^2+x-10\\\\2x=10\\\\x=5[/tex]

Hope this helps!

the 9. is 7(y + 2)is 7+2 i think.

10. 8+4

11. 8+9

12. 5+12

13. 2+4

14. 6+7

15. 15-5

16. 5-3

17. 11-6

I rewrite I think if that is correct.

Byee

answer

Step-by-step explanation:

9) 7y+14

10) 32+4r

11) 8x+72

12) 12b+60

13) 8+4a

14) 42+7v

15) 15b-75

16) 15-3v

17) 66-6s

Answer: SEE EXPLANATION (en ingles)

Step-by-step explanation:

A binomial is an algebraic expression of the sum or the difference of two terms.  

En espanol: Un binomio es una expresión algebraica de la suma o la diferencia de dos términos.

Answer:

(16y-3) (4y+1)

Step-by-step explanation:

using quadratic formula i.e.ay^2+by+c=0

64y^2+4y-3

64y^2+16y-12y-3

16y(4y+1)-3(4y+1)

(16y-3) (4y+1)

hope it help yuh...mark brianliest if my answer suit your question.

Answer:

Two polygons are similar with factor k.

=> The ratio between the area of two polygons: r = k^2

=> Here, the area of polygon B is larger than polygon A: 5^2 = 25 times

Hope this helps!

:)

Answer:

Area of polygon B is larger than the area of Polygon A by 25 times.

Step-by-step explanation:

The simplest way of finding this would be to draw a rough image of polygon A and B.

Let's say you drew Polygon A and B as rectangles. Since the scale factor is 5, the dimensions of the sides of polygon B would be 5 times as that of the dimensions of polygon A.

if you label the dimensions of Polygon A as length 2cm and width as 1cm, its area would be 2 square centimetres.

now keeping the scale factor of 5 in mind, multiply the length and the width by 5. you will get the length of polygon B as 10cm and width as 5cm. the area of polygon B becomes 50 square centimetres.

once you have done this, you will realise that the area of polygon B is 25 times the area of polygon A.

Hope this helped:)

Step-by-step explanation:

line number                    Property

Line 1: (-7x+3)+2x            associative (gathering -7x and 3)

Line 2: (3+(-7x))+2x.        Commutative (change the positions of 3 and -7x)

Line 3: 3+(-7x+2x).          associatI’ve

Line 4: 3+(-5x)

Answer:

  R'(0, 3), S'(3, 2), T'(5, -2), Q'(1, -1)

Step-by-step explanation:

The first reflection gives you the transformation ...

  (x, y) ⇒ (x, -y)

The second reflection gives you the transformation ...

  (x, y) ⇒ (x, 2 -y)

Applying the second transformation to the result of the first gives the overall transformation ...

  (x, y) ⇒ (x, 2 -(-y)) = (x, 2+y)

That is, the double reflection is equivalent to a translation upward of 2 units. So, we add 2 to each y-value:

  R'(0, 3), S'(3, 2), T'(5, -2), Q'(1, -1)

Answer:

The length and width of the rectangle are 10.5 in and 6.5 in respectively.

Step-by-step explanation:

P = 2L + 2W

P (perimeter of the rectangle) = 34 in

L (length of the rectangle) = 4 in + W (width of the rectangle)

Therefore, L = 4 + W

P = 2L + 2W

34 = 2(4 + W) + 2W

34 = 8 + 2W + 2W

34 - 8 = 4W

26 = 4W

W = 26/4 = 6.5 in

L = 4 + W = 4 + 6.5 = 10.5 in

L = 10.5 in

W = 6.5 in

Answer:?

The following list shows how many brothers and sisters some students have:

2, 4, 3, 3, 4, 2, 4, 3, 3, 2, 3, 4

State the mode.

Step-by-step explanation:

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

Explanation:

Focus on point F only. Ignore the other points.

Point F is at (-5, -5).

The x coordinate of this point is x = -5

The horizontal distance from x = -5 to the reflection line x = -1 is 4 units. We move 4 units to the right going from x = -5 to x = -1. Move another 4 units to the right to land on x = 3

Point F = (-5, -5) reflects over x = -1 to land on point G = (3, -5) as shown in the diagram below.

Then going from point G to H has us move upward 4 units up to land on the purple line y = -1, then another 4 units up to finally arrive at point H = (3,3). This is also the location of F'.

Answer:

[tex]x=\frac{15}{2}[/tex] [tex]z=\frac{35113}{2703}[/tex] [tex]a=\frac{15}{4}[/tex] [tex]y=\frac{35113}{5406}[/tex] [tex]b=\frac{45}{4}[/tex]

Step-by-step explanation:

To solve this, we will have to use multiple methods, including the pythagorean theorem and the 30 60 90 rule.

In the 30 60 90 rule, it is stated that the angle opposing the side with 30 degrees is represented by [tex]s[/tex], the angle opposing the side with 60 is [tex]s\sqrt{3}[/tex] and the angle opposing 90 degree angle is represented by [tex]2s[/tex]. Looking at the whole triangle, we can see the 30, 60 and 90 degrees, and the angle with 90 has an opposing side of 15, which means we have to use 15=2s to find the other sides. When dividing 15 by 2, you get 7.5, which is s. Now we know that the angle opposing 30 is 15/2, which is x. Now that we have "s", we can also solve for z, represented by the 60 degrees. Multiply 7.5 and [tex]\sqrt{3}[/tex] to get z=35113/2703.

Now we can solve for the smaller triangles. Since we have already found x, we can use the 30 60 90 method in this too. The x (15/2) is now represented by 2s. Therefore, solve for your new s by doing this: 15/2 = 2s. You should get your 30 degree angle answer (a) with this, which is 15/4. Now that we have to use pythagorean theorem, which is [tex]a^{2} + b^{2} = c^{2}[/tex] to solve for the remaining side (y) of the small triangle. You should get 35113/5406.

Finally we have the last side left: b. Since we have so many sides now, all we have to use is the pythagorean theorem again. Use [tex]b^2+y^2=z^2[/tex] and solve for b. You should get 45/4.

Answer:

picture

Step-by-step explanation:

Answer:

y = [tex]\frac{2}{3}[/tex] x + 6

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = [tex]\frac{2}{3}[/tex] x ← is in slope- intercept form

with slope m = [tex]\frac{2}{3}[/tex] and c = 0

Parallel lines have equal slopes , thus

y = [tex]\frac{2}{3}[/tex] x + c ← is the partial equation

To find c substitute (- 6, 2) into the partial equation

2 = - 4 + c ⇒ c = 2 + 4 = 6

y = [tex]\frac{2}{3}[/tex] x + 6 ← equation of parallel line

Answer:

square

Step-by-step explanation:

Answer: A  tube

Step-by-step explanation:

Answer: I am very sorry, but I don't know the answer either

Answer:

The answer would be 36^2=x

Step-by-step explanation:

Answer:

it would b 2 in half cups of powder

Answer:

coordinates of its image

A' = ( -4, -1)

B' =( -3, -3)

C' = ( 0, 2)

Step-by-step explanation:

Reflect in y-axis means mirror it's points in the y -axis.

This means that the x coordinate of each point, changes only. Any mirrored point in the y-axis, will change only, by multiplying the x-coordinate by -1.

(Remember, zero multiplied by -1 remains 0).

Given are these points A, B, and C.

A = (4, -1)

B = (3,-3)

C = (0, 2)

After mirroring in the y- axis you get:

A' = ( -4, -1)

B' =( -3, -3)

C' = ( 0, 2)

Answer:

A.

Step-by-step explanation:

A quadratic function may only intercept the y-axis once. This is because the definition of a y-intercept tells us that it is the point where x = 0. If there are multiple points where x = 0, then the expression cannot be a function. As such, a quadratic function can only have one.

Choice B contradicts the previous statement.

Choice C is wrong because the x-intercept is the zero of the function. This is because at a given x-coordinate that touches the x-axis, the y-coordinate will be 'zero'.

Choice D is wrong because the y-intercept is where x = 0.

I hope this helps!

For the first one you just need to pour 1 gallon of water from the 5 gallon jug in the 3 gallon jug... If I understood well the question...

I think I probably didn't understand the question but...