Which proportion can be used to find the length of DE in centimeters?

Answer:

I answered it for u before :D

Answer:

-1

Step-by-step explanation:

f(x)= -4x- 5

f(-1)= -4.-1 -5

f(-1)= 4 - 5

f(-1)= -1

maaf kalau salah

semoga membantu

Answer:

4.5 It doesn't come out evenly, but cross products do work.

Step-by-step explanation:

She is not correct.

50 * x = 3 * 75              Combine the right

50x = 225                    Divide by 50

x = 225/50

x = 4.5

Answer:

In order, top to bottom:

(-3,6)

(-2,1)

(0,-3)

(2,1)

(3,6)

Step-by-step explanation:

All you have to do is plug the X given into the equation provided to find Y, y=x^2-3.

For the first row, you're given -3 for X, so you plug that into the equation.

y=(-3)^2-3 So, -3^2 is just (-3) times (-3) which equals 9. Then you subtract 3 from 9 which gives you 6. So your Y=6 for the first row. And, you do the same thing for the rest of the rows. Just plug X in and solve. Anything raised to the second power is just that number multiplied by itself like I did with the -3.  

Answer:

92xy

Step-by-step explanation:

Multiplying 23 by 4 results in 92.

Then 23y times 4x = 92xy

Step-by-step explanation:

x is -9 because i did the math and im smart

Answer:

Step-by-step explanation:

yes

Answer:

The answer is 42 dollars trust me give me brainliest pls

Step-by-step explanation:

I’m a GOAT in math

Answer:

37.5%

Step-by-step explanation:

I don't have a step-by-step explanation, and I don't know if this is right. It doesn't give me enough time to solve it. If an expert could check this, it would be highly appreciated!

Answer:

I am assuming you mean to simplify, in which case the answer is 4/x + 12.

However, I may have misread the formula, in which case I'm incredibly sorry.

Answer:

B

Step-by-step explanation:

Edge 2021

Answer:

Step-by-step explanation:

Formula for circumference = 2πr

where r = radius

π = 3.14

10. Radius = 4in

Circumference = 2πr = 2 × 3.14 × 4

= 25.12in

11. Radius = 7 yard

Circumference = 2πr = 2 × 3.14 × 7

= 43.96 yard

12. Radius = 3.6 km

Circumference = 2πr = 2 × 3.14 × 3.6

= 22.608 km

13. Radius = 1.1mm

Circumference = 2πr = 2 × 3.14 × 1.1

= 6.908mm

14. Radius = 1/4mi

Circumference = 2πr = 2 × 3.14 × 0.25

= 1.57mi

Answer:

x = 28/3

or

x = 9.33

Step-by-step explanation:

12x - 8 = 104

      +8     +8

12x = 112

divide 112 by 12

x = 28/3 or 9.33

Answer:

22

Step-by-step explanation:

just divide lukes votes by bianca's

Answer:

2 feet.

Step-by-step explanation:

Here the surface of the water is taken as the reference point. Let us take the depth of the swimmer below the water to be negative. Ali is 6 feet from the surface of the water so his height is -6. He then rose 4 feet so this need to be added to his initial height.

So, Ali has reached a height of [tex]-6+4=-2\ \text{feet}[/tex]. Hence, Ali is 2 feet from the surface of the water.

Could you please check the other question you put? Thanks!

Answer:

Question 9) [tex]y=\frac{-3}{2}x+2 \\\\[/tex]

Question 10) [tex]y=-x-6\\[/tex]

Step-by-step explanation:

Well there are two methods of determining an equation of line

Method 1 (Using the slope-intercept form):

[tex]y=mx+b[/tex]

This method is mostly used when the y-intercept also known as b is given and the slope also known as m is given

Method 2 (Using the point-slope form):

[tex]y-y_1=m(x-x_1)\\[/tex]

This method is used when a point is given also known as (x1 , y1) and the slope is given which is denoted by m.

Since in Question 9 there is no y-intercept given only two points we will use the second method so here goes,

Q9)

Two points are  (0 , 2) and (4 , -4) first step to find out the equation of line is to calculate the slope which is as follows:

[tex]m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{-4-2}{4-0} \\\\m=\frac{-6}{4}\\\\m=-3/2 \\[/tex]

Now we have our slope which is m = -3/2 now since we have two points we can use any point in the point-slope form equation because both of these points lie on the line hence satisfying the desired equation that we need so we select the point (0 , 2) [YOU CAN TRY OUT FINDING THE EQUATION OF LINE BY USING THE OTHER POINT THE ANSWERS WOULD BE SAME]

so now we have the point (0 , 2) and value of m = -3/2

[tex]y-y_1=m(x-x_1)\\y-2=\frac{-3}{2}(x-0)\\\\y-2=\frac{-3}{2}x\\\\y=\frac{-3}{2}x+2\\\\[/tex]

Question 10)

Two points are (-2 , -4) and (-3 , -3) we use the same method as shown above,

First step calculate the slope:

[tex]m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{-3-(-4)}{-3-(-2)} \\\\m=\frac{-3+4}{-3+2}\\\\m=1/-1\\\\m=-1\\[/tex]

now we insert the value of m = -1 and take any point of the two points that are given, we select the first point (-2 , -4)

[tex]y-y_1=m(x-x_1)\\y-(-4)=(-1)(x-(-2))\\y+4=(-1)(x+2)\\y+4=-x-2\\y=-x-2-4\\y=-x-6\\[/tex]

Answer:

The answer is "6".

Step-by-step explanation:

Given:

[tex]C_1[/tex] line segment [tex](0,0) \ to \ (-3,-1)[/tex]

[tex]C_2[/tex] line segment [tex](-3,1)\ to\ (-6,0)[/tex]

[tex]C_1[/tex] line equation:

[tex]\to \frac{x-0}{-3-0}=\frac{y-0}{1-0}=t\\\\\to x=-3t\\\\\to y= t\\\\ \longrightarrow \int _{C_1} -3 \ dy - 1 dx\\\\=\int^1_{0} -3 \ dt -(-3 \ dt)\\\\=\int^1_{0} 0 \ dt \\\\=0\\\\\therefore\\\\\to x=-3t\ \ \ \ \ \ \ \ \ \to y=t\\\\\to dx= -3 dt\ \ \ \ \ \ \ \ \to dy = dt\\\\[/tex]

[tex]\bold{\int _{C_1} -3 \ dy - dx=0}\\\\[/tex]

[tex]C_2[/tex] line equation:

[tex]\to \frac{x-(-3)}{-6-(-3)}=\frac{y-1}{0-1}=t\\\\\to x=-3t-3 \ \ \ \ \ \ \ \ \ \ \to dx= -3 \ dt \\\\\to y= 1-t\ \ \ \ \ \ \ \ \ \ \ \ \ \ \to dy= -dt[/tex]

[tex]\int _{C_2} -3 \ dy - dx\\\\=\int^1 _{0} -3 \ (-dt) - (-3\ dt)\\\\=\int^1 _{0} 6 \ dt\\\\=6\\\\\to \bold{\int _{C_2} -3 \ dy - dx=6}\\\\[/tex]

Let [tex]C=C_1+C_2[/tex]

[tex]\to \bold{\int _{C} -3 \ dy - dx= \int _{C_1} -3 \ dy - 1\ dx +\int _{C_2} -3 \ dy - dx}\\\\[/tex]

                             [tex]=0+6\\\\=6[/tex]

Answer:

57

Step-by-step explanation:

Answer:

$54

Step-by-step explanation:

[tex]42/7=6\\48/8=6\\x/9=6\\x=54[/tex]

Hope this helped :D

Answer: $54

Step-by-step explanation:

if we divide 42 by 7, or we divide 48 by 8, we can see that it is 6. so, one shirt costs $6. then, we just multiply 9 (the amount of shirts) by 6 (the cost of a shirt), and we get 54.

Answer:

The pattern is that you multiply her hours by the number 35 which is the money she earns.

Step-by-step explanation:

Hours worked l Money earned

l

1 hour l $35

2 hours l $70

3 hours l $105

4 hours l $140

5 hours l $175

Answer:

where are the options

Step-by-step explanation:

Answer:

-6

Step-by-step explanation:

I hope this helps you out!

Answer:

x = 22

Step-by-step explanation:

Okay since they give you the measurement of 96 degrees and the lines are parallel, this means that 6x - 36 equals 96 degrees. However we are trying to find out what the variable x equals so we are going to put 6x - 36 and 96 degrees into a equation:

6x - 36 = 96

Now we are going to get all variables on one side of the equal sign and all numbers on the other, starting with adding 36 to both sides of the equal sign.

6x - 36 = 96

   + 36   +36

So now the equation looks like this:

6x = 132

Now we are going to segregate the variable x from 6x by dividing 6x by 6 and what you do to one side of the equal sign you do to the other:

6x/6 = 132/6

to equal:

x = 22

Now to check our work we are going to replace the variable x with 22 into the equation:

6x - 36 = 96 Now 6(22) - 36 = 96

132 - 36 = 96

96 = 96

I hope this helps you!!