If DEC△ABC∼△DEC, find the values of x and y.

Answer:

Option A

Step-by-step explanation:

[tex]D=3ef^2\\[/tex]

we need to make e the subject of the formula so here goes,

On the right side 3 is being multiplied by ef^2 so when it moves to the left side it will divide

[tex]\frac{D}{3}=ef^2[/tex]

now f^2 is also being multiplied by e on the right side so when it moves to the left side it will divide

[tex]\frac{D}{3f^2}=e\\\\[/tex]

Answer:

x = 8

Step-by-step explanation:

Well, you didn't specify if it was an isosceles triangle or if it was equal or anything so we're going to assume it is.

So since both sides are equal 7+x=15

7(-7)+x=15(-7)

x=8

Plug in 8 as x to check

7 + 8

15

Which would equal the other side.

Answer:

0.91

Step-by-step explanation:

Answer:

(-3,9)

Step-by-step explanation:

Answer:

she have feed 26 or 27

Step-by-step explanation:

I am confused it's 26 or27

Answer: It is .............. A or C but I can't see the question you're trying to answer

Step-by-step explanation:

Answer:

x=2

Step-by-step explanation:

16=2x+2(4+x). First distribute the 2 into the parenthesis (4+x):

16=2x+8+2x. Now combine the like terms:

16=4x+8. Now to get 4x by itself, subtract 8 to the left:

8=4x. Solve for x by dividing by 4:

2=x

Answer:

the difference between them is letter b would be on the left side in the negative and a is in the positive

Step-by-step explanation:

hoped this helped lmk if it did

Answer:

4: zero

Step-by-step explanation:

It's a zero slope because it's just a straight line. There is no x, so it's a zero slope. Take a look at my work! :)

Answer:

greater than because that is what it is your welcome

Answer:

the bottom left one is right

Step-by-step explanation:

Answer:

After doing the math, I came up with B and/or C could be the answer

ANSWER:

y=-4/5x+7

Subtract 8x from both sides of the equation.

10=70y −8x

Divide each term by 10 and simplify

cancel the comman factor to Cancel the common factor.

which is 10

Divide y by 1

Simplify  

    70     -8x

y= --- + --------

    10        10

write in y=mx+b form

so it y=-4/5x+7

Answer:

3 water bottles

Step-by-step explanation:

25-10=15

15/5=3

Answer:

70

Step-by-step explanation:

It's 70 because first you have multiply for Cindy's words 65×7=455 then multiple David's 75 word times 7 and you get 525. Lastly, You subtract both of their totals and get 70

Hope this helped!

Answer: (2,2)

Step-by-step explanation:

I'm going to use substitution to solve this:

First, I use the second equation to solve for y in terms of x.

2x - y = 2

-y = 2 - 2x

y = 2x - 2

Then, I plug the value for y into the first equation:

2x + 4y = 12

2x + 4(2x - 2) = 12

2x + 8x - 8 = 12

10x - 8 = 12

10x = 20

x = 2

Now that we have x, we can plug it into either equation (I used the first) to get the value for y:

2x + 4y = 12

2(2) + 4y = 12

4 + 4y = 12

4y = 8

y = 2

We get the point (2,2) as a solution.

Note: This is the point where both lines intersect.

After solving the equation, the value of for the points x and y are (2, 2).

Equations are mathematical expressions that have two algebra on either side of an equal (=) sign. The expressions on the left and right are shown to be equal to one another, demonstrating this relationship. L.H.S. = R.H.S. (left-hand side = right side) is a fundamental simple equation.

As per the given equation in the question,

2x + 4y = 12   (i) and

2x - y = 2  (ii)

Solve the value for y,

5y = 10

y = 10/5

y = 2

Substitute y=2 in equation (i)

2x + 4(2) = 12

2x = 12 - 8

x = 4/2

x = 2

Therefore, the point is (2, 2).

To know more about Equation:

https://brainly.com/question/14686792

#SPJ5

Answer:

(-3/8) (-5/7) (-1/4) is the answer

Step-by-step explanation:

please mark me as brainliest please

Answer:

5 + 3a

Step-by-step explanation:

5 - a + 4a =

5 + ( -a + 4a ) =

5 + ( 4a - a ) =

5 + ( 3a )

Answer:

I have done it I hope it's the right answer

Answer:

Oh, it's (-1,-1)

Once you graph both lines, you find the point of intersection and they both intersect at point (-1,-1)

If you have any more questions let me know! :)

Step-by-step explanation:

The answer is in the image.

Answer:

The answer is C. 18 units

Step-by-step explanation:

Please mark brainliest

Hope this helps!

Answer:

C) 18 square units

Step-by-step explanation:

There are many ways to go about solving this.  You could divide it into two triangles with a middle section.  But it might be easier just to count the squares:

whole squares = 12

half squares = 4 (which equals 2)

3/4 square = 4

1/4 squares = 4

(add the 3/4 and 1/4 squares to equal 4)

12+2+4=18

Answer:

5:6 5books to 6 pencils

Answer:

5:6, 5 to 6 or 5/6

Answer:

42592

Step-by-step explanation:

Answer:42592

Step-by-step explanation: So what you do is do 88 times 88/22 and so on :)

Answer:

p = 10.50 + b b = 10.50 + p b = 10.50p p = 10.50b​

Step-by-step explanation:

The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 21, 42, 63, 84, and 105. Points are shown on ordered pairs 0, 0 and ..

The graph below shows the price of different numbers of mats at a store: A graph is shown. The values on the x axis are 0, 2, 4, 6, 8, 10. The values on the y axis are 0, 21, 42, 63, 84, and 105. Po - the ... 21, 42, 63, 84, and 105. Points are shown on ordered pairs 0, 0 and 2, 21 and 4, 42 and 6, 63 and 8, 84.

Answer:

p = 10.50 + b b = 10.50 + p b = 10.50p p = 10.50b​

Step-by-step explanation:

Answer: An equation is a mathematical statement that shows the equal value of two expressions while an inequality is a mathematical statement that shows that an expression is lesser than or more than the other. An equation shows the equality of two variables while an inequality shows the inequality of two variables.

Step-by-step explanation: Hope this helps! :D

one scenario can be that if you have less than or equal amount of money only then you can buy a certain thing......e.g : if price of a game is 40....then i should have money equal to or more than fourty to buy the game......

money>=40

Answer:

x = 5

Step-by-step explanation:

substitute the y  equation into -2x +3y =8 and you will get 5 as the solution :)

Answer:

9 7/8 - ( -2 4/5 - 1/2)  = 13.175

Step-by-step explanation:

Hope this is correct and helps.