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Ludmilka [50]
4 years ago
11

The pie chart shows information about the grades achieved by all of the candidates in Keval's school who took AS Level English i

n 2015. 8 candidates achieved grade C. Work out the number of candidates in Keval's school who took AS Level English in 2015, showing your working out (2 marks)
Mathematics
1 answer:
makvit [3.9K]4 years ago
6 0

Answer:

you have to put the pie chart to get an answer

Step-by-step explanation:

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Use right triangle ABC, with right angle C, as shown to answer the question.
kompoz [17]

The ratios are: sin B = 4/5 , cos B = 3/5 and tan B = 4/3

Step-by-step explanation:

We can see in the diagram that the values of all sides are given. In case of trigonometric ratios, the side in front of angle under consideration is perpendicular and the side adjacent to angle is base.

In the given case, we have to find trigonometric ratios for angle B; So,

Base = a = 3

Perpendicular = b = 4

Hypotenuse = c = 5

Hence,

The ratios will be:

sin\ B = \frac{perpendicular}{hypotenuse} = \frac{b}{c} =\frac{4}{5}\\cos\ B = \frac{base}{hypotenuse} = \frac{a}{c} =\frac{3}{5}\\tan\ B = \frac{perpendicular}{base} = \frac{b}{a} = \frac{4}{3}

The ratios are: sin B = 4/5 , cos B = 3/5 and tan B = 4/3

Keywords: Ratios, triangle

Learn more about trigonometric ratios at:

  • brainly.com/question/10703930
  • brainly.com/question/10772025

#LearnwithBrainly

8 0
3 years ago
4. Andrés desea embaldosar el piso de su casa que tiene 375 cm de ancho y 435 cm de largo. Calcula la longitud del lado que tend
svetlana [45]

Answer:

Sabemos que el piso es un rectángulo de 435 cm de largo y 375 cm de ancho.

Recordar que para un rectángulo de largo L, y ancho W, el área es:

A = L*W

Entonces el área del piso, será:

A = 435cm*375cm = 163,125 cm^2

Primero, sabemos que se utilizaran baldosas (las cuales son cuadradas) y queremos saber la longitud de lado que tendrían las baldosas.

No tenemos ningún criterio para encontrar este lado, solo que (si queremos usar un número entero de baldosas) el largo L del lado de la baldosa deberá ser un divisor de tanto el ancho como el largo del suelo.

Dicho de otra forma

el largo, 435cm, tiene que ser múltiplo de L

el ancho, 375cm, tiene que ser múltiplo de L.

Por ejemplo, ambos números son múltiplos de 5, entonces podríamos tomar L = 5cm

En este caso, el área de cada baldosa es:

a = L^2 = 5cm*5cm = 25cm^2

Y el número total de baldosas que necesitaría usar esta dado por el cociente entre el área del suelo y el area de cada baldosa.

N = ( 163,125 cm^2)/(25cm^2) = 6,525 baldosas.

También sabemos que ambos números (435cm y 375cm) son múltiplos de 15cm

Entonces las baldosas podrían tener 15cm de lado.

En este caso, el área de cada baldosa es:

A = (15cm)^2 = 225cm

En este caso el número total de baldosas necesarias será:

N =  ( 163,125 cm^2)/(225cm^2) = 725 baldosas.

5 0
3 years ago
Acellus<br> 25°<br> У<br> X 120°<br> y=[ ?
sweet [91]

Answer:

25. Rigorous Yet Adaptive – Making the College Dream a Reality . ... 120. What is the Acellus Courseware Development System? ... Acellus turns the learning process into a science, and by so doing, improves the overall effectiveness of the ...

Missing: У ‎y

Step-by-step explanation:

Hope it helps

4 0
3 years ago
Read 2 more answers
Work out m and c for the like: y=x+9
aliya0001 [1]

\huge\boxed{\boxed{Hello\:there!}}

We are given the equation of the line in slope-intercept form (y=mx+c)

Where

m is the slope

b (or c) is the y-intercept.

The slope of the given line is 1, and the y-intercept is 9.

\huge\boxed{\rm{Hope\:it\:helps!\:Good\:luck!}}

\huge\mathfrak{LoveLastsAllEternity:)}

3 0
3 years ago
Read 2 more answers
What is the product of the polynomials below?<br> (3x^2 - 2x - 3)(5x^2 + 4x + 5)
frozen [14]

Answer:

15x^4+2x^3-8x^2-22x-15

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
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