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3 years ago

Please a correct answer gets brain thing that I forgot it name please help

Mathematics

1 answer:

kicyunya [14]3 years ago

4 0

Answer:

;FIHI;IHFHGILSOUDHFUHZSIUDGNJKZNSFJGNOSHTJOIJOIGJOSKFNGKNSJKGNONOJGOKJN

Step-by-step explanation:

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Juanita did this work to solve an equation. Did she make an error?

Sergio [31]

Yes it should be a negative nine not a positive nine

Have a nice day : )

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3 years ago

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Angle α lies in quadrant II , and tan α = <img src="https://tex.z-dn.net/?f=-%5Cfrac%7B12%7D%7B5%7D" id="TexFormula1" title="-\f

Hunter-Best [27]

Since $\alpha$ lies in quadrant II and $\beta$ lies in quadrant IV, we expect $\sin\alpha>0$ , $\cos\alpha$ , and $\sin\beta$ .

Recall the Pythagorean identities,

$\sin^2x+\cos^2x=1\iff1+\cot^2x=\csc^2x\iff\tan^2x+1=\sec^2x$

It follows that

$\sec\alpha=\dfrac1{\cos\alpha}=-\sqrt{\tan^2\alpha+1}=-\dfrac{13}5\implies\cos\alpha=-\dfrac5{13}$

$\sin\alpha=\sqrt{1-\cos^2\alpha}=\dfrac{12}{13}$

$\sin\beta=-\sqrt{1-\cos^2\beta}=-\dfrac45$

Recall the angle sum identity for sine:

$\sin(\alpha+\beta)=\sin\alpha\cos\beta+\sin\beta\cos\alpha$

So we have

$\sin(\alpha+\beta)=\dfrac{12}{13}\dfrac35+\left(-\dfrac45\right)\left(-\dfrac5{13}\right)=\boxed{\dfrac{56}{65}}$

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3 years ago

Is the rate of change of the function 5? On a coordinate plane, a line with positive slope goes through points (negative 2, 0) a

Rashid [163]

Answer:

Step-by-step explanation:

the slope is 2/3

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4 years ago

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A sequence is created from the function k(n) = 2n + 3, where n represents the position of the term of the sequence. The sequence

pashok25 [27]

Substitute the n value into the equation. The n repersents the 'nth' term.
K (1) = 2(1) + 3
K = 5
Therefore, when n = 1, K = 5
Same goes t any other term.

K (3) = 2(3) + 3
K = 9
So, when n = 3, K=9

Just keep applying the same rule. Also, make sure that you answer it with a sentence at the end. This should always help you and the marker see that you are confidence with your answer...

I hoped I helped out. Good luck. :)

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3 years ago

Determine the domain of the following graph:

dedylja [7]

Answer:

Domain: -5, -3, -2, 1, 3

Step-by-step explanation:

Find all the points on the x-axis that line up with the line shown on the graph.

8 0

2 years ago