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Serga [27]
3 years ago
13

I need help so fast please!

Mathematics
1 answer:
disa [49]3 years ago
8 0
The third option is correct hope this helps!!!
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120 children go on a holiday. The ratio of the number of girls to the number of boys is 3:5. On Sunday, all the children either
Masja [62]

Answer:

32/50

Step-by-step explanation:

hope this helps if not sorry :)

4 0
3 years ago
In a small town in the Himalayas, the average snowfall each month is 6 inches. July is the month with the lowest average snowfal
OLga [1]

The function that models the above behavior is given as:

f(x) = ACos(B(x + C)) + 6 ..... .......i

where x = 1 (that is January)

D (Average Snowfall) = 6.

Hence, the amplitude (A) is given as:
A = 6-1

= 5

<h3>What is a mathematical function?</h3>

A mathematical function is a function comprising of different variables that    represent different factors or events and the relationships between them.

<h3>
During what period is there more than 10 inches of snowfall?</h3><h3 />

Recall that in a year we have 12 months. Hence, P = 12

→ P = (2π) /.B → (2π)/B = 12 → B = π/6

Taking the values of A and B and plugging them in, we ahve:

F(x) = 5 cos (π/6(x + C)) + 6................ii

This means that in July, we'll have

x = 7 and f(x) = 1

Therefore,

1 = 5cos ((π/6) (7 + C) + 6 → 5 Cos  ((π/6) (7 + C) →  -5cos ((π/6) (7 + C)

= -1

→   ((π/6) (7 + C) = π

→ 7 + C = 6

→ C = -1

Taking equation ii, we have

F(x) = 5cos ((π6) (x -1)) + 6

F (x) > 10

Therefore

5cos ((π/6) (x-1) + 6 > 10

→  cos ((π/6) (x-1) + 6 > 4/5

→  (π/6) (x-1)  > Cos⁻¹ (4/5)

(π/6) (x-1)  < 0.6435 and

(π/6) (x-1)  > 5.6397

→ x < 2.23 and x > 11.77

The interpretation is that upwards of ten inches of snow fall in January, February, November, and December.

Learn more about functions at;
brainly.com/question/25638609
#SPJ1

3 0
2 years ago
27a+21 i need to solve thi problem help me
Anika [276]
That's an expression, so the only thing you can do is simplify it, but that already looks simplified.
8 0
3 years ago
In a restaurant there are 5 possible pizza toppings chicken, pineapple olives mushrooms and beef Freddie picks two different top
Ksju [112]

Answer:

please the question is not done

Step-by-step explanation:

please don't take this the wrong way

6 0
3 years ago
Find the area of the figure.<br> 2 cm<br> 3 cm<br> 6 cm<br> 12 cm
Dafna1 [17]

Answer:

66 cm^2

Step-by-step explanation:

12*6=72 cm^2 and to find the missing pience of the rectangle you multiply 3*2= 6 cm^2.

72 - 6 = 66

7 0
3 years ago
Read 2 more answers
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