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3 years ago

GIVING OUT BRAINLIEST ANSWER !! HELP ME OUT PLSS!!

Mathematics

2 answers:

Karo-lina-s [1.5K]3 years ago

4 0

Answer:

x = 7 hope this helps !!!

Step-by-step explanation:

Type 1: You know the short leg (the side across from the 30-degree angle). Double its length to find the hypotenuse. You can multiply the short side by the square root of 3 to find the long leg.

Type 2: You know the hypotenuse. Divide the hypotenuse by 2 to find the short side. Multiply this answer by the square root of 3 to find the long leg.

Type 3: You know the long leg (the side across from the 60-degree angle). Divide this side by the square root of 3 to find the short side. Double that figure to find the hypotenuse.

this is a type 3 triangle, and you can find the length of y from it, it being 14, and x is half of y, being 7

viktelen [127]3 years ago

3 0

Tan (30) = x/7 $\sqrt{3}$

Tan (30) times $7\sqrt{3}$ = x

7 = x

Have a great day,

and thank you for the support - Oceanbreeze24

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2x^2 / x^2 - y^2 - x^2 / xy - y ^ 2

Juliette [100K]

Answer:

2 - 2y^2 - x/y

Step-by-step explanation:

2x^2/x^2 = 2

and

x^2/xy = x/y

therefore

2x^2/x^2 - y^2 - x^2/xy - y^2

= 2 - y^2 - x/y - y^2

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3 years ago

Radium-226 has a half life of 1622 years. If you start off with a 200

sweet [91]

Answer:

≈23.6 kg left.

Step-by-step explanation:

For determining this, we can simply use an exponential decay equation representing this scenario:

$y= a(0.5)^{\frac{t}{h} }$

a: the initial amount

t: the amount of time

h: the half life

Now, substitute the numbers into the equation:

$y=200(0.5)^{\frac{5000}{1622} }$

Now, solve this equation:

$y=220(0.5)^{3.08}$

Use a calculator to solve for y:

y= 200(0.118)

y≈23.6 kg left.

3 0

3 years ago

In the figure find the value of x

NikAS [45]

Answer:

I'm not that sure but I really feel like it's 15

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3 years ago

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The formula for the area of a triangle is A = one-half b h. Which is the equivalent equation solved for h? StartFraction 2 A Ove

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Answer:

StartFraction 2 A Over b EndFraction = h

Step-by-step explanation:

$A = \frac{1}{2} \times b \times h \\ \\ 2A = b \times h \\ \\ \huge \red{ \boxed{h = \frac{2A}{b}}} \\$

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The world's population is expected to grow at a rate of 1.3% per year until at least the year 2020. In 1994 the total population

Marina CMI [18]

The solution to your problem is as follows:

Given:
P₀ = 5,642×10^6 people,
i = 1.3% = 0.013 per year,
n = 2020 - 1994 = 26 years,

We get:

Pn = P₀ e^(i.n) 
. . .= 5,642×10^6×e^(0.013×26)
. . .= 7,911×10^6 people

Therefore, the the world's predicted population in the year 2020 is 7,911×10^6 people.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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3 years ago