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3 years ago

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the sum of the digits of a 2 digit number is 12. the difference of the digit it 2. find the number if the units digit is larger

than the 10 digits

1 answer:

Temka [501]3 years ago

3 0

Answer:

Step-by-step explanation:

a 2 digit number xy (x tenth, y unit digit) y>x

x+y=12

y-x=2

x=5

y=7

57

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

denis-greek [22]

Answer:

<u>______________________________________________________</u>

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For any right angled triangle with one angle α ,

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

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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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3 years ago

solve the compound inequality. graph your solution. 2x – 2 < –12 or 2x 3 > 7 a. x < –5 or x > 2 b. x < –12 or x &

Kisachek [45]

2x - 2 < -12 or 2x + 3 > 7
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Answer:

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Step-by-step explanation:

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Tasa = 255 /1700 × 1.25

= 0.12

= 0.12 × 100

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Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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