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3 years ago

Triangle ABC~DEF find the missing value of y. please explain how its done.

Mathematics

1 answer:

77julia77 [94]3 years ago

6 0

Triangle abc and def are paralell

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Tell whether the ordered pair is a solution to the equation. (-2, 8); y = -2x - 1

slavikrds [6]

Answer:

No, the pair is not a solution to the equation.

Step-by-step explanation:

For the pair to be a solution to the equation, x = -2 must lead to y = 8, o =r vice versa. This leads to being able to solve it two ways either through x or through y.

I'll solve it through x:

y = -2x - 1

with x = -2

y = -2 * - 2 - 1

y = 4 - 1

y = 3

Since y = 3, when x = -2 the pair (-2,8) is not a pair to the solution of the equation.

PS: You can double check by solving through y and you'll find x = -4.5

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2 years ago

- 7х — бу = 4 = – 3y + 8 ×= y=

Yuki888 [10]

X= -4

Y= 4

Coordinates (-4,4)

Amiyah. B

7 0

4 years ago

Which transformation or sequence of transformations maps △ABC to △A'B'C' ?

velikii [3]

Answer:

" (1) Reflect ABC across the x-axis and call this new triangle A'B'C'. (2) Translate A'B'C' 2 units right and 6 units up so that its image is A''B''C''. "

Step-by-step explanation:

6 0

3 years ago

What is the value of 8x2−5xwhen x = 3? 96 57 33 19

astraxan [27]

Answer:

Step-by-step explanation:

Substiture x for 3

8*3*2-5*3

= 33

8 0

3 years ago

The median player salary for a professional football team was $457,200 in 2000 and $1,342,676 in 2008. Write a linear equation g

Vesna [10]

Answer:

The linear equation giving the median salary y in terms of the year x is:

y = 110,684.5x + 457,200

Step-by-step explanation:

For calculating the linear equation first we need to calculate the slope of the equation represented with an m, the formula is the following:

$m=\frac{y_{2}- y_{1} }{x_{2}-x_{1}}$

As in the problem it is said, x will represent the time so:

x1 will be the initial year so x1=2000

x2 will be the final year so x2=2008

Now the salary will be represented with the y so:

y1 will be the salary for the year 2000 then y1 = $457,200

y2 will be the salary for the year 2008 then y2 = $1,342,576

Then replacing the values in the equation we will have the following expresión:

$m=\frac{1,342,676-457,200}{2008-2000} = \frac{885,476}{8}=110,684.5$

Now we have to replace this values in the following formula for linear equation

y-y1 = m(x-x1)

As they say that x represent 2000 as the initial year then when we replace we will have the following expresion

y - 457,200 = 110,684.5(x - 0)

y = 110,684.5x + 457,200

To verify our equation we can check for the salary in 2008 as it is 8 years after of 2000 x=8 then

y = 110,684.5 (8) + 457,200

y = 885,476 + 457,200 = 1,342,676

6 0

3 years ago