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2 years ago

Yep here we go again:

Mathematics

2 answers:

Shtirlitz [24]2 years ago

5 0

Answer:

9 am it will be IV quadrant

11 it will be I quadrant

hope it helps u

mylen [45]2 years ago

5 0

Answer:

9 am. is quadrant IV

11 am. is quadrant I

0 degrees celcius at noon

Step-by-step explanation:

Hope this helps!

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On Dec. 4, 1998, sunrise was at 6:58 and sunset was at 4:12.

zhuklara [117]

The length of the daylight was 9 hr 10 min

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2 years ago

What is the conjugate? square root of 8 - square root of 9

elixir [45]

Answer:

-0.17157287525

Step-by-step explanation:

1. The square root of 8 will never be a whole number so it is 2.82842712475

2. Square root of 9 is 3.

3. You can already realize that the answer will not be whole or positive

4. Subtract in order.

5. The answer is -0.17157287525

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2 years ago

Find 2 common angles that sum to (17pi/12) 2. Evaluate tan(17pi/12) using the sum identity for tangent.

Dmitry [639]

Note that
$\frac{17 \pi }{12} = \frac{3 \pi }{12} + \frac{14 \pi }{12} = \frac{ \pi }{4} + \frac{7 \pi }{6}$

Note that
$x= \frac{ \pi }{4}:\,\, sin(x) =cos(x)= \frac{1}{ \sqrt{2} },\,tan(x)=1\\x= \frac{7 \pi }{6} :\,\,sin(x)=- \frac{1}{2} ,\,\,cos(x)=- \frac{ \sqrt{3} }{2} ,\,\,tan(x)= \frac{1}{ \sqrt{3} }$

Use the identity
$tan(x+y)= \frac{tan(x)+tan(y)}{1-tan(x)tan(y)}$

Therefore
$tan( \frac{17 \pi }{12} )= \frac{1+ \frac{1}{ \sqrt{3} } }{1- \frac{1}{ \sqrt{3} } } = \frac{ \sqrt{3}+1 }{ \sqrt{3}-1} = \frac{( \sqrt{3}+1 )^{2}}{( \sqrt{3}-1 )( \sqrt{3}+1 )} = \frac{3+1+2 \sqrt{3}}{3-1} =2+ \sqrt{3}$

Answer: 2 + √3

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3 years ago

What is the measure of angle x?

tiny-mole [99]

The answer would be 42 because its the same angle as the other one
I hope I helped! ♥

5 0

3 years ago

Read 2 more answers

Combine the like terms to create an equivalent expression<br> -k - ( - 8k)

Svetllana [295]

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Answer:

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Step-by-step explanation:

We are trying to combine like terms with the expression: -k - ( - 8k)

We are pretty much solving it.

Solve:

-k - ( - 8k)

The "- ( -" turns into a plus sign.

So it would look like:

-k - -8k or -k + 8k

Now, you would finish solving

-k + 8k = 7k

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3 0

2 years ago

Read 2 more answers