Is ratio 4.2:1.5 proportional to 12.6:4.5

Mathematics

1 answer:

Gennadij [26K]3 years ago

5 0

If we divide 12.6/4.5 by 3 we receive 4.2/1.5. So yes they are proportional.

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2 years ago

In the triangle below, 4/5 represents which ratio?

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Answer:
sin (C)

Explanation:
In a right-angled triangle, special trig functions can be applied. These functions are as follows:
sin (theta) = $\frac{opposite}{hypotenuse}$

cos (theta) = $\frac{adjacent}{hypotenuse}$

tan (theta) = $\frac{opposite}{adjacent}$ 

Now, let's check the triangle we have:
We have two options:
First option:
5 is the hypotenuse of the triangle
4 is the side adjacent to angle B
Therefore, we can apply the cos function:
cos (B) = $\frac{4}{5}$ 

Second option:
5 is the hypotenuse of the triangle
4 is the side opposite to angle C
Therefore, we can apply the sin function:
sin (C) = $\frac{4}{5}$

Among the two options, the second one is the one found in the choices. Therefore, it will be the correct one.

Hope this helps :)

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3 years ago

Read 2 more answers

In the equation y = 4 x, if the value of x is increased by 2, what is the effect on the value of y ?

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