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andre [41]
3 years ago
11

What is the only solution of 2x2 + 8x = x2 – 16?

Mathematics
2 answers:
posledela3 years ago
8 0
Simplify and solve quadratic equation:

2x^2+8x=x^2-16 => x^2+8x+16 => (x+4)^2=16 => x={-4,-4}
So numerically the only solution is x=-4.

However, mathematically, there are two solutions, {-4,-4}, or x=4,multiplicity 2.
True [87]3 years ago
4 0

Answer:

(-4,-4)

Step-by-step explanation:

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4x - 5y = -28<br>-3x - 2y = 10​
kozerog [31]

Answer:

y=-4/23

im not sure i didn't check (might be wrong)

Step-by-step explanation:

4x - 5y = -28

-3x - 2y = 10​

then make x the same

So

12x-15y=-84

-12x-8y=80

then its left with

-23y=-4

y=-4/23

find x by entering y into -3x - 2y = 10 and solving

8 0
3 years ago
linda saved 2 ten-dollar bills, 4 five- dollar bills, and 15 one-dollar bills, Harry saved 16 more than linda how much does harr
telo118 [61]
Harry has 71 becasue its 20 + 20 + 15 + 16
7 0
3 years ago
Read 2 more answers
-(5x + 6) - x = -6 - 6x​
Dvinal [7]

Answer:

-5x-6-x=-6-6x

-6x-6=-6-6x

0=0

7 0
3 years ago
The measure of one of two complementary angles is 6 degrees less than one half the measure of the other. Find the measure of the
solmaris [256]
It's helpful to choose letters to represent the measures of these complementary angles.  Let x represent one and y the other.

What does "complementary angle" mean?  x + y = ??

Let x be the smaller angle.  First, we take "half the measure of the larger angle," or (y/2).  Then we subtract 6 degrees from this result (y/2).  The result is the xmaller angle, x.

Now you have two equations in x and y.  Solve for one of these angles, and then find the other.  Please show your work.
7 0
4 years ago
Armando tiene 25 chocolates en una caja y caja y cada chocolate tiene un relleno de 4 posibles fresa, mora y piña. De los 25 cho
Debora [2.8K]

La probabilidad que se pueden calcular es:

c: Probabilidad de que el chocolate no tenga relleno de piña.

<h3>¿Como encontrar las probabilidades?</h3>

Sabemos que hay 25 chocolates en total en la caja, tal que:

  • 8 son de mora.
  • 5 son de piña
  • los 12 restantes son de fresa o cereza.

La probabilidad de obtener un tipo particular de sabor se obtiene como el cociente entre el número de chocolates de ese sabor y el total de chocolates.

La probabilidad que se pueden calcular es:

c: Probabilidad de que el chocolate no tenga relleno de piña.

Sabemos que 5 chocolates tienen relleno de piña, entonces 20 no tienen relleno de piña. es decir, la probabilidad es:

P = 20/25 = 4/5

Sí quieres aprender más sobre probabilidad:

brainly.com/question/24756209

#SPJ1

3 0
2 years ago
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