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____ [38]
3 years ago
11

HELPPP!! PLSSS IM STUCK The vertices of a triangle are P(-7, -4), Q(-7, -8, and R(3, -3). Name the vertices of the image reflect

ed across the line y=x.
P'(4, 7), Q'(8, 7), R'(3, -3)?
P'(4, -7), Q'(8, -7), R'(3, 3)?
P'(-4, -7), Q'(-8, -7), R'(-3, 3)?
P'(-4, 7), Q'(-8, 7), R'(-3, -3)?
Mathematics
1 answer:
kvasek [131]3 years ago
8 0
Reflection across the line y= x, cause to interchange the x and y coordinate
 p(x,y) ⇒ p(y,x)
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Answer:

Step-by-step explanation:

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3 years ago
Kelly is making a chart to show her parents that the number of minutes she spoke on her cell phone decreased over the last 5 mon
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The choice isB
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Farmer Brown has 42 animals, which are cows and chickens. They have a total of 120 legs. Write a system of equations, show your
SCORPION-xisa [38]

Answer:

The system of equations is:

x + y = 42

4x + 2y = 120

And there are 24 chickens.

Step-by-step explanation:

We know that the total number of cows (x) plus the total number of chickens (y) is 42, because Farmer Brown has 42 animals.

We also know that cows (x) have 4 legs and so 4 times the number of cows is the number of cow legs. And chickens (y) have 2 legs, so the number of chickens times two represents the total chicken legs. The sum of 4x + 2y is 120 because there are 120 legs in total.

To solve the system of equations, first solve each equation for y.

In the first equation:

x + y = 42

Subtract x from both sides to isolate y.

y = 42 - x

Second equation:

4x + 2y = 120

Subtract 4x from both sides

2y = 120 - 4x

Divide both sides by 2

y = 60 - 2x

Now that the y's are isolated in both equation, you can put them into 1 equation. Where y = y:

y = 42 - x

y = 60 - 2x

42 - x = 60 - 2x

Add 2x to both sides

42 + x = 60

Subtract 42 from both sides

x = 18

Since x is the number of cows, we know that Farmer Brown has 18 cows.

Now we can substitute the x value into one of the equations:

y = 42 - x

y = 42 - (18)

y = 24

The number of chickens is represented by y, so there are 24 chickens.

3 0
2 years ago
Please help due at 4:30!!
VARVARA [1.3K]
350 people must attend each night to break even.
Hope this helps :)

Work shown in the image.

3 0
3 years ago
Easy one - giving brainly - show work.<br>you can do any of the 3, i don't mind.​
Murrr4er [49]

Answer:

A

Total before tax: $118

Total after tax: $102.66

Step-by-step explanation:

For A, we add the cost of the shirt and jeans to get the total before tax.

$39.20 + $79.80 = $118.00

For the total, after 13% we see how much 1% is.

1% of $118 is $1.18

$1.18 * 13 = $15.34.

$118 - $15.34 = $102.66

Hope this helped! Have a nice day :)

6 0
2 years ago
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