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3 years ago

Triangle DEF with vertices D(2, 6), E(5, 6)and F(5, 1). Write the coordinates of triangle D’E’F’ after a

Mathematics

1 answer:

Yakvenalex [24]3 years ago

8 0

Answer:

The coordinates of triangle after reflection over y-axis

D¹( -2 ,6) , E¹( -5 ,6) , F¹ (-5,1)

Step-by-step explanation:

Explanation:-

Given that DEF with vertices D(2,6), E(5,6), and F(5,1)

Given that the triangle DEF reflection over the 'y' - axis then transformed into

( x,y) → (-x,y)

Now,

D(2,6) → D¹( -2 ,6)

E(5,6)→ E¹( -5 ,6)

F(5,1)→ F¹ (-5,1)

Final answer:-

The coordinates of triangle after reflection over y-axis

D¹( -2 ,6) , E¹( -5 ,6) , F¹ (-5,1)

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labwork [276]

Answer:

(x, y) = (0, -2248)

Step-by-step explanation:

Substitution

Substitute for y:

300x -2248 = 350x -2248

0 = 50x . . . . . . . . add 2248-300x to both sides

x = 0

y = 300·0 -2248

The solution is (x, y) = (0, -2248).

Elimination

Subtract the first equation from the second.

(y) -(y) = (350x -2248) -(300x -2248)

0 = 50x

x = 0

y = 300·0 -2248

The solution is (x, y) = (0, -2248).

Additional comment

If you think for a bit about what the graph looks like, you realize both lines cross at their y-intercept, (0, -2248). That point of intersection is the solution to the system of equations.

7 0

3 years ago

Can someone also explain how to get the answer thank u

goblinko [34]

Answer:

$m = -\frac{194}{3}$

Step-by-step explanation:

I'm assuming you are trying to find m. In order to do so, you need to get m on one side.

Before doing that let's multiple -2 and -3m by $\frac{4}{3}$

$256=-\frac{8}{3} - 4m$

add $-\frac{8}{3}$ to both sides

$258\frac{2}{3}=-4m$

I would get rid of the fraction so I'd multiply both sides by $\frac{3}{1}$

$\frac{776}{3}*3 = 4m*3$

$776=-12m$

divide both sides by -12m

$m = -\frac{776}{12}$

which can be simplified to

$m = -\frac{194}{3}$

ALL UNLESS THAT $\frac{4}{3}$ IS A POWER

3 0

3 years ago

Express x and y in terms of trigonometric ratios of 0.

Georgia [21]

SIN(θ) = OPPOSITE / HYPOTENUSE = X / Y
COS(θ) = ADJACENT / HYPOTENUSE = 2 / Y
TAN(θ) = OPPOSITE / ADJACENT = X / 2
CSC(θ) = 1 / SIN(θ) = 1 / (X / Y) = Y / X
SEC(θ) = 1 / COS (θ) = 1 / (2 / Y) = Y / 2
COT (θ) = 1 / TAN(θ) = 1 / (X / 2) = 2 / X
HUNEY, YOU HAVE ALL OF THE VALUES, NOW JUST SOLVE FOR X AND Y THEN...
FOR EXAMPLE:
SIN(θ) = X / Y X = Y * SIN(θ)
COS(θ) = 2 / Y Y = 2 / COS(θ)
TAN(θ) = X / 2 X = 2 * TAN(θ)
SO ON, SO FORTH HUN U GET IT

4 0

3 years ago

A transaction is positive if there is a sale and negative when there is a return. Each time a customer uses credit card for a tr

anastassius [24]

Full question:

A transaction is positive if there is a sale and negative when there is a return. Each time a customer uses credit card for a transaction, the credit company charges Isabel. The credit company charges 1.5% of each sale and a fee of 0.5 % for returns

Let x represent the amount of a transaction and let f(x) represent the amount Isabel is charged for the transaction. Write a function that expresses f(x)

Answer:

f(x)= 0.015(x)

f(x)= 0.005(x)

Explanation:

If Isabel makes a sale, she has a positive transaction and therefore is charged 1.5%(which is 0.015) by the credit company for the transaction. If the product is returned, it is a negative transaction and the credit company charges 0.5%(which is 0.005) for the transaction. The functions for positive and negative transactions would be different as indicated in the answer since transactions( given by x) are different- positive and negative.

4 0

3 years ago

6. A house painter mixed 2 gal of white paint for every 8 gal of red paint to make pink paint. Which ratio of white paint to red

Lelu [443]

Answer:

Step-by-step explanation:

the ratio is 2/8.

2/8 = 1/4.

8/20 = 2/5 is NOT equal to 1/4.

12/45 = 4/15 is NOT equal to 1/4

6/24 = 1/4 perfect

2/40 = 1/20 is NOT equal to 1/4

5 0

2 years ago