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Dimas [21]
3 years ago
9

Find x and y from the triangle.

Mathematics
1 answer:
lidiya [134]3 years ago
7 0

Answer:

x = 39

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , then

x + x + 12 + 90 = 180

2x + 102 = 180 ( subtract 102 from both sides )

2x = 78 ( divide both sides by 2 )

x = 39

Then

x = 39°

x + 12 = 39 + 12 = 51°

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<span>For this case we have the following function:
</span> f(x) = -5x^2 - 20x - 10&#10;
<span> To find the axis of symmetry, the first thing to do is to derive the function.
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</span> f '(x) = -10x - 20 &#10;
<span> Equaling zero we have:
</span> -10x - 20 = 0 &#10;
<span> We clear the value of x.
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</span> -10x = 20 &#10;&#10;x = -20/10 &#10;&#10;x = -2 &#10;
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A principal of $2000 is placed in a savings account at 3% per annum compounded annually. How much is in the account after one ye
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Answer:

Step-by-step explanation:

After one year

A=p(1+r/n)^nt

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After two-years

A=p(1+r/n)^nt

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After three years

A=p(1+r/n)^nt

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The formula for the circumference of a circle is C = 2LaTeX: \pi π r. If the circumference of the circle is approximately 32.7 i
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Answer:

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Step-by-step explanation:

we know that

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