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Alekssandra [29.7K]
2 years ago
7

I’m trying to prove this but I’m stuck... :( Can someone help ?

Mathematics
1 answer:
Tom [10]2 years ago
7 0
I can help, but what are you exactly trying to do here?
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70% of Ms. Miller's class passed the test on the first try. Those who failed were able to retake and half of those students pass
MrRissso [65]

Answer:

85%

Step-by-step explanation:

  1. Calculate how many students passed on their first try. 20 x 70% is 14, so 14 students passed on their first try.
  2. 6 students retook the test. Half of 6 is 3. Add 3 to the 14 students that passed earlier.
  3. Calculate the percent with the equation 17/20 = 0.85. 0.85 = 85%.
5 0
3 years ago
Will give brainlest :)
snow_lady [41]

Answer:

C)

Step-by-step explanation:

4 0
2 years ago
Resolver xfa... El taller trata de division de polinomios o algo asi
luda_lava [24]

La altura del triangulo está dada por el polinomio:

p(x) = a + 4

<h3></h3><h3>¿Cual es la altura del triangulo?</h3>

Recordar que para un triangulo de base B y altura H, el area es

A = B*H/2

En este caso, sabemos que la base es B = (4*a^2 + 6)

Y el area es A = 2a^3 + 8a^2 +3a +12

Entoces la altura será un polinomio tal que:

P(a)*(4*a^2 + 6)/2 = 2a^3 + 8a^2 +3a +12

P(a)*(4*a^2 + 6) = 2*(2a^3 + 8a^2 +3a +12) = 4a^3 + 16a^2 + 6a + 24

Podemos ver que p(a) va a ser un polinomio de grado 1, entonces:

p(a) = (c*a + b)

Reemplazando eso:

(c*a + b)*(4*a^2 + 6) = 4a^3 + 16a^2 + 6a + 24

Expandiendo:

(4c)*a^3 + (6c)*a + (4b)*a^2 + 6*b = 4a^3 + 16a^2 + 6a + 24

Comparando terminos del mismo exponente, podemos ver que:

(4c) = 4

6c = 6

4b = 16

6b = 24

Resolviendo esas ecuaciones para c y b, podemos ver que:

b = 16/4 = 4

c = 4/4 = 1

Entonces la altura del triangulo está dada por el polinomio:

p(x) = a + 4

Sí quieres aprender más sober polinomios:

https://brainly.lat/tarea/17903571

#SPJ1

8 0
1 year ago
Reduce with same digit: 34 /51 =??
Tems11 [23]
Use the given functions to set up and simplify 34/51
the answer is 2/3
7 0
3 years ago
Read 2 more answers
What is 24/7 as a mixed number
Masteriza [31]
I can't do the fraction bar but it's 3 and 3/7
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3 years ago
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