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vlada-n [284]
3 years ago
8

Pedro solves the quadratic equation x^2+6x –14 using the quadratic formula. In which step did Pedro make an error?

Mathematics
1 answer:
Nutka1998 [239]3 years ago
3 0

9514 1404 393

Answer:

  correct choice is marked

Step-by-step explanation:

The error is in step 2. The square root cannot be distributed to a sum.

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IRISSAK [1]
The latest would be 5:22
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4 years ago
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An isosceles trapezoid has bases of 4 and 10. If the base angle is 45 what is the area
Alex
The triangle that the height makes would be a 45-45-90 special right triangle. So the height is 3√2, and to find the area, it would be the average of the bases, 7, multiplied by 3√2. So the area of the trapezoid is 21√2.
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Hope this helps!
8 0
4 years ago
Población de alces. Se introducen cíen alces en una reserva zoológica, cada uno de un año de edad. El número N(t) de animales vi
frutty [35]

Answer:

El número de animales vivos después de 1, 5 y 10 años es 90, 60 y 35 respectivamente.

Step-by-step explanation:

Sabes que el número N(t) de animales vivos después de t años se predice mediante N(t) = 100*0.9^{t}

Para estimar el número de animales vivos después de, por ejemplo, 1 año debes simplemente reemplazar el tiempo t por el tiempo correspondiente, en este caso 1 año:

N(1) = 100*0.9^{1}

Resolviendo:

N(1) = 100*0.9^{1}= 100*0.9= 90

De manera similar, podes estimar el número de animales vivos después de 5 y 10 años. Esto es, reemplazas t por 5 años:

N(5) = 100*0.9^{5}= 100*0.59049= 59.049≅ 60

y t por 10 años:

N(10) = 100*0.9^{10}= 100*0.3487= 34.86 ≅ 35

<u><em>El número de animales vivos después de 1, 5 y 10 años es 90, 60 y 35 respectivamente.</em></u>

6 0
3 years ago
Drag each shape to the correct category.
Nataly [62]

Answer:

D- 456 is 3 2 7 4 = Ab

Step-by-step explanation:

5 0
3 years ago
Write the equation of the line passing through (−1, 0) and (0, −3).
iragen [17]

Answer:

y = -3x -3

Step-by-step explanation:

We have two points so we can find the slope

m = (y2-y1)/ (x2-x1)

m = (-3-0)/(0--1)

   = (-3-0)/(0+1)

   = -3/1

  = -3

We have the slope and the y intercept (where x=0) The y intercept is -3

y = mx+b  where m is the slope and b is the y intercept

y = -3x -3

6 0
3 years ago
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