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Andrews [41]
3 years ago
15

What values of x are solutions for x^2 + 2x = 8 ?

Mathematics
1 answer:
mixas84 [53]3 years ago
3 0

Answer:

option A is right.

mark me brainliest

You might be interested in
A bus makes a stop at 2:30, letting off 16 people and letting on 3. The bus makes another stop ten minutes later to let off 2 mo
liq [111]

Answer:

10 people lesser.

Step-by-step explanation:

Initially, it 15 people  get off but 9 people get picked up, hence losing 6 people.  If 4 more people get off, it has then lost 10 people total.

The original number of passengers on the bus decreased by 10 after the second stop

Assume that the total passengers on the bus before 2:30 was x

Now, at 2:30:

15 passengers got off and 9 got on.

This means that:

number of passengers = x - 15 + 9 

number of passengers = x -6

10 minutes later:

4 passengers got off the bus

This means that:

number of passengers = (x-6) - 4

number of passengers = x - 10

The original number of passengers on the bus decreased by 10 after the second stop.

3 0
3 years ago
Calculate the factorization 16w^2+48w+36=(4w+[1])^2
stiv31 [10]

Answer:

  [1] = 6

  x = -3/2 is the root

Step-by-step explanation:

A perfect square trinomial is of the form ...

  (a + b)² = a² +2ab +b²

You have ...

  • a²=16w²   ⇒   a = 4w
  • b² = 36   ⇒   b = 6
  • 2ab = 2(4w)(6) = 48w

Then the factorization is ...

  16w² +48w +36 = (4w +6)²

This will be zero when x = -6/4 = -3/2.

3 0
3 years ago
Help quick! The table below shows the water temperature at certain depths of a lake. Using an logarithmic model, write an equati
Norma-Jean [14]

Answer:

we need the graph lol

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The perimeter of a particular square and the circumference of a particular circle are equal. What is the ratio of the area of th
oksano4ka [1.4K]
<h2>Ratio of area of the square to the area of the circle = π/4</h2>

Step-by-step explanation:

Let the side of square be a and radius of circle be r.

The perimeter of a particular square and the circumference of a particular circle are equal.

Perimeter of square = 4 x a = 4a

Circumference of circle = 2πr

Given that

                      4a = 2πr

                        a=\frac{\pi r}{2}

We need to find the ratio of the area of the square to the area of the circle.

Area of the square = a²

Area of the circle = πr²

\texttt{Ratio of area of the square to the area of the circle =}\frac{a^2}{\pi r^2}\\\\\texttt{Ratio of area of the square to the area of the circle =}\frac{\left ( \frac{\pi r}{2}\right )^2}{\pi r^2}\\\\\texttt{Ratio of area of the square to the area of the circle = }\frac{\pi}{4}

Ratio of area of the square to the area of the circle = π/4

6 0
3 years ago
A watermelon seed is 0.4 cm long how far ould a line of 114 seeds strech in meters
Alexeev081 [22]

it would be 0.456 meters.

6 0
3 years ago
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