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GuDViN [60]
3 years ago
12

Using the discriminant, find the number of solutions for the given function: y=-x^2-3x+4

Mathematics
1 answer:
omeli [17]3 years ago
6 0

Answer:

no real solutions

Step-by-step explanation:

The discriminant is

b^2 -4ac

Where ax^ +bx+c

x^2-3x+4

so a=1  b = -3  c=4

(-3)^2 -4(1)(4)

9 - 16

-7

Since the discriminant is less than 0 there are no real solutions

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3 years ago
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Justine is planting flowers in a line that is 1/2 of a yard long. She is going to plant 6 flowers. How far apart will each flowe
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Answer:

3 inches apart

Step-by-step explanation:

1/2 yard is 1ft. 6in. in decimal that is 1.5 ft

1.5 ÷6 = 0.25ft

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3 years ago
Se vendieron un total de 430 boletos para la obra de teatro escolar. Los boletos eran o de adulto o de estudiante. Se vendieron
BartSMP [9]

Resolviendo un sistema de ecuaciones, veremos que se vendieron 250 boletos de adulto.

<h3>¿Cuántos boletos de adulto fueron vendidos?</h3>

Definamos las variables:

  • x = boletos de adulto vendidos.
  • y = boletos de estudiantes vendidos.

Se vendieron un total de 430 boletos, entonces:

x + y = 430

Y se vendieron 70 boletos de estudiante menos que boletos de adulto:

y = x - 70

Tenemos el sistema de ecuaciones:

x + y = 430

y = x - 70

Para resolverlo, podemos reemplazar la segunda ecuación en la primera:

x + y = 430

x + (x - 70) = 430

2x = 430 + 70 = 500

x = 500/2 = 250

Se vendieron 250 boletos de adulto.

Sí quieres aprender más sobre sistemas de ecuaciones:

brainly.com/question/13729904

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5 0
2 years ago
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2.5 would be the answer
 
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Answer:

2

Step-by-step explanation:

The frequency is how many times the score shows up in the data set

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27 shows up 2 times so the frequency is 2

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