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Sedbober [7]
3 years ago
12

3.3.25

Mathematics
1 answer:
Kryger [21]3 years ago
4 0

Answer:

16.0 us the answer to that question

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Solve for y x=y^2+4y
Lorico [155]
x=y^2+4y\\ y^2+4y-x=0\\\Delta=4^2-4\cdot1\cdot(-x)=16+4x\\\\
1.\ \Delta0\\
\sqrt{\Delta}=\sqrt{16+4x}=\sqrt{4(4+x)}=2\sqrt{x+4}\\
y_1=\frac{-4-2\sqrt{x+4}}{2\cdot1}=-2-\sqrt{x+4}\\
y_2=\frac{-4+2\sqrt{x+4}}{2\cdot1}=-2+\sqrt{x+4}\\

-----------------------------------------------------

x=y^2+4y\\ y^2+4y-x=0\\
y^2+4y+4-4-x=0\\
(y+2)^2=x+4\\
y+2=\sqrt{x+4} \vee y+2=-\sqrt{x+4}\\
y=-2+\sqrt{x+4} \vee y=-2-\sqrt{x+4}\\

4 0
3 years ago
Use the Distributive Property to solve the equation. 3x-5(x-4)=-9+5x+15
Norma-Jean [14]

Answer:

I keep getting no solution

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

5(x−4)=−9+5x+15

(5)(x)+(5)(−4)=−9+5x+15(Distribute)

5x+−20=−9+5x+15

5x−20=(5x)+(−9+15)(Combine Like Terms)

5x−20=5x+6

5x−20=5x+6

Step 2: Subtract 5x from both sides.

5x−20−5x=5x+6−5x

−20=6

Step 3: Add 20 to both sides.

−20+20=6+20

0=26

7 0
3 years ago
Solve for x in this equation.
arsen [322]

Answer:

33

Step-by-step explanation:

1. (x-10)+67=90 because it's a 90 degree angle

2.subtract 67: x-10=23

3. add 10: x=33

7 0
3 years ago
Read 2 more answers
-4x + 3y = -19<br> -4x - y = -15
Stells [14]

Answer:

x=

−3

4

y+

−19

4

Step-by-step explanation:

8 0
3 years ago
The person who can come up with a good caption for either photo gets brainliest
Oliga [24]

Answer:

One hour’s sleep before midnight is worth three after.

6 0
3 years ago
Read 2 more answers
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