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ICE Princess25 [194]
3 years ago
15

Plzzzzzzzzzzz answer this y^2+4x=0 2x+y=4

Mathematics
1 answer:
jekas [21]3 years ago
4 0
Y^2 + 4x = 0
y=4 - 2x

then substitute the given value of y into the equation y^2 + 4x = 0

(4 - 2x) ^2 +4x = 0

then solve for x

but there are no real values so your answer is x∉ R
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4 years ago
For the function {(2, 4), (3, 5), (4, 6), (5, 7)}, what is the domain?
sammy [17]

Answer: Domain:

{

1

,

3

,

4

,

6

,

8

}

Step-by-step explanation:

The domain is the set of all the values of

x

.

6 0
3 years ago
In a triangle the first angle is greater than the second angle by 18 degree and less than the third angle by 10 grade. Express a
serg [7]

Answer:

The 3 angles are 62 2/3, 44 2/.3 and 72 2/3 degrees.

Step-by-step explanation:

let x be the first angle then the  the second angle is  x - 18 and the third angle = x + 10

The 3 angles add up to 180 so:

x + x - 18 + x + 10 = 180

3x = 180 + 18 - 10 = 188

x = 188/3 = 62 2/3 degrees.

x - 18 = 44 2/3

x + 10 = 72 2/3.

8 0
3 years ago
A store is having a 20% off sale. If the
Aleks [24]

Answer:

$64.32

Step-by-step explanation:

What you do is:

$53.60×20% → $53.60×0.2

$53.60×0.2=$10.72

$10.72 is the amount of money taken off because of the sale.

Then what you do is:

$53.60+$10.72=_____

53.60

<u>+10.72</u>

64.32

The original price was $64.32.

Hope this helps! Please mark my answer brainliest!

3 0
4 years ago
Read 2 more answers
GIVING 100 POINTS FOR THIS QUESTION PLS PL SPL SPLS PLS HELPPP!!!!! !!
sergiy2304 [10]

Answer: 65000$ worth of things

This is edited, because I got it backwards last time.

We need to make 2500, but she only makes 4% of whatever she sells.

That means the equation is

2500 = 0.04x

Now, we just need to divide both sides by 0.04 and we get 65000.

Sorry for the confusion.

7 0
3 years ago
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