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Musya8 [376]
3 years ago
9

HELP PLEASE WITH THIS SOLVING QUADRATIC EQUATION QUICK

Mathematics
1 answer:
liraira [26]3 years ago
3 0

Answer:

11, -4

Step-by-step explanation:

x =  \frac{ - b +  \sqrt{ {(b)}^{2} + - 4(a)(c) } }{2a}

x =  \frac{ - b  -   \sqrt{ {(b)}^{2} + - 4(a)(c) } }{2a}

you have to do both of these top equations

a = 1

b = -7

c = -34 - 10 = -44

substitute these numbers into both equations to get x

x = 11 , -4

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El costo de producir 10 juegos de video al día es de 350 dólares , mientras que producir 30 juegos del mismo tipo al día cuestan
Dovator [93]

Answer:

El coste de producir un juego de vídeo es de 125 dólares.

Step-by-step explanation:

(This exercise is written in Spanish and is incomplete. Complete statement will be presented below)

El costo de producir 10 juegos de video al día es de 350 dólares , mientras que producir 30 juegos del mismo tipo al día cuestan 850 dólares . Si suponemos un modelo lineal como el descrito anteriormente , determine:

¿Cuál es el costo de producir un juego de vídeo?

(Explanation will be held in Spanish)

El modelo lineal es un polinomio de primer orden de la forma:

y = a\cdot x + b

Donde:

x - Variable independiente (eje x - Cantidad de juegos de vídeo producidos - Adimensional)

y - Variable dependiente (eje y - Coste de producción de juegos de vídeo - Dólares)

a - Pendiente de la función.

b - Intercepto en el eje y.

Dados los dos costes para dos cuotas distintas de producción, se construye el siguiente sistema de ecuaciones lineales:

10\cdot a + b = 350

30 \cdot a + b = 850

Se resuelve el sistema con algo de manipulación algebraica:

(30\cdot a + b) - (10\cdot a + b) = 850 - 350

20 \cdot a = 500

a = 25

Luego:

b = 850 - 30\cdot a

b = 100

La ecuación lineal es:

y = 25\cdot x +100

Finalmente, el coste de producir un juego de vídeo es:

y = 25 \cdot (1) + 100

y = 125

El coste de producir un juego de vídeo es de 125 dólares.

7 0
4 years ago
5(2x−3) Simplify the Expression
jarptica [38.1K]

Answer:

10x−15

Step-by-step explanation:

5(2x−3)

5(2x)+5( −3)

10x+5(−3)

10x−15

<h3>Hope it is helpful....</h3>
6 0
3 years ago
(1/3+9) x ( 8-3) tell me the steps help
mafiozo [28]
Use PEMDAS to solve
(Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)

Solve parenthesis first
<span>(1/3+9) x ( 8-3)
</span>28/3 x 5

Use Multiplication 
28/3 x 5 ≈ 4.7
After rounding 4.7 should be your answer
3 0
4 years ago
I need your help please❤️ you place $6543 in a savings account which earns.7% interest compounded semi annually, after 3 years h
jasenka [17]
$8043 is what you have now
Hope it is correct
6 0
3 years ago
I need helpppppp i have no idea what im looking at lol
stepan [7]

By applying the Tan trigonometric formula, the value of the tangent for angle A is equal to: A. 3√91/91.

<h3>How to find the value of the tangent for <A?</h3>

In order to determine the value of the tangent for <A, we would apply Pythagorean theorem:

AB² = AC² + BC²

40² = AC² + 12²

AC² = 1600 - 144

AC = √1456

AC = 4√91 in.

Now, we can determine the value of the tangent for <A by applying the Tan trigonometric formula:

TanA = Opp/Adj

TanA = BC/AC

TanA = 12/4√91

TanA = 3√91/91.

Read more on trigonometry functions here: brainly.com/question/4515552

#SPJ1

6 0
2 years ago
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