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1 year ago

Help me please!!! 10 points!!

Mathematics

2 answers:

hammer [34]1 year ago

8 0

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's solve for x ~

We can apply Trigonometric ratios here, since the given triangle is a right angled triangle

so,

$\qquad \sf \dashrightarrow \: \sin(30) = \dfrac{ \sqrt{3} }{x}$

$\qquad \sf \dashrightarrow \: \dfrac{1}{2} = \dfrac{ \sqrt{3} }{x}$

$\qquad \sf \dashrightarrow \:x = 2 \times \sqrt{3}$

$\qquad \sf \dashrightarrow \:x = 2 \sqrt{3}$

i hope you you understood

Allisa [31]1 year ago

4 0

Answer:

2√3

Step-by-step explanation:

The shown triangle is a 30-60-90 special right triangle due to the right angle and the thirty degree angle(the other angle has to be 60 degrees).

The hypotenuse of a 30-60-90 triangle is twice the leg opposite the 30 angle. The leg opposite the 30 degree angle is √3, so x would be 2√3.

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The population of a city has decreased by 38% since it was last measured. If the current population is 27,900, what what the pre

Varvara68 [4.7K]

Answer:

The population of a city has decreased by 38% since it was last measured. If the current population is 27,900 .Previous population of city was 45000.

Solution:

Given that current population of city is 27900.

Also, population of a city has decreased by 38% since it was last measured.

Let assume that population of city when it was last measured = x

Decreased of 38% means x-38% of x . we can write this as,

$=x-\frac{38}{100} \times x$

$=\frac{100 x-38 x}{100}$

$=\frac{62 x}{100}=\frac{31 x}{50}$

So current population is $\frac{31 x}{50}$

Equating above expression to the given value of current population, we get

$\frac{31 x}{50}=27900$

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Hence previous population of city was 45000.

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otez555 [7]

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Answer:

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Answer:

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