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4 years ago

What is 3x3 – 8x2 – 5x + 6 subtracted from x3 + 3x2 + 5x + 6?

Mathematics

2 answers:

Aleks [24]4 years ago

8 0

Answer:

-2x^3 -5x^2

Step-by-step explanation:

Y_Kistochka [10]4 years ago

6 0

-2x3 -5x2 assuming that this is written in exponential form

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-11=a+7 dolce equation

zubka84 [21]

-11 = a + 7 Given

-7 -7 Subtract 7 on each side to cancel out +7 and isolate variable

-18 = a Answer

Prove.

-11 = -18 + 7 Plug in variable value

-11 = -11

True.

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3 years ago

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Which expressions are equal to 105?

Tamiku [17]

Answer:

103 and 102

Step-by-step explanation:

u add them together

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3 years ago

48 worksheets : 12 students. write yhe ratio as a fraction in simplest form.

Gennadij [26K]

48/12 = 24•2/6•2= 24/6= 12•2/3•2= 12/3= 4/1

In simplest form the ratio is
4 worksheets : 1 student

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3 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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3 years ago

45 centimeters is equal to how many inches

Solnce55 [7]

Answer:

Around 17.716 inches

Step-by-step explanation:

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3 years ago

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