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2 years ago

Plz help me 20points

Mathematics

2 answers:

Alexandra [31]2 years ago

3 0

Answer:

20 according to me. I am sorry if I'm wrong

o-na [289]2 years ago

3 0

Answer:

18 lmk if it's wrong but I think it's right

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What is Mrs. Gordon's rate from 0 to 2 seconds? Please help me!!!!!

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Answer:did you ever get it?

Step-by-step explanation:

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2 years ago

Cos (90-theta) • cosec90-theta) =tano. How?

denis-greek [22]

Answer:

______________________________________________________

TRIGONOMETRY IDENTITIES TO BE USED IN THE QUESTION :-

For any right angled triangle with one angle α ,

$\cos (90 - \alpha ) = \sin \alpha$ or $\sin(90 - \alpha ) = \cos\alpha$

$cosec \: (90 - \alpha ) = \sec\alpha$ or $\sec(90 - \alpha ) = cosec\:\alpha$

SOME GENERAL TRIGNOMETRIC FORMULAS :-

$\sin \alpha = \frac{1}{cosec \: \alpha }$ or $cosec \: \alpha = \frac{1}{\sin \alpha }$

$\cos \alpha = \frac{1}{\sec \alpha }$ or $\sec \alpha = \frac{1}{\cos \alpha }$

______________________________________________________

Now , lets come to the question.

In a right angled triangle , let one angle be α (in place of theta) .

So , lets solve L.H.S.

$\cos (90 - \alpha ) \times cosec(90 - \alpha )$

$=> sin\alpha \times \sec\alpha$

$=> \sin\alpha \times \frac{1}{\cos\alpha }$

$=> \frac{\sin\alpha }{\cos\alpha }$

$=> \tan\alpha$ = R.H.S.

∴ L.H.S. = R.H.S. (Proved)

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2 years ago

Your grandfather placed $5,000 in a trust fund for you. In 12 years, the fund will be

PolarNik [594]

Answer:

fv/pv=(1+r)^n

10,000/5000=(1+r%)^12

2=(1+r%)^12

r= 5.95

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2 years ago

Read 2 more answers

This as a decimal 6th

makkiz [27]

Answer:

the answer to the question is 3.2

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2 years ago

Multi-step equation -10p+9p=12

KengaRu [80]

Answer:

p = -12

Step-by-step explanation:

- 10p + 9p = 12

- p = 12

p = - 12

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2 years ago