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3 years ago

What is 8.9 divided by 3.05?And I need a valid answer please :)

Mathematics

2 answers:

soldi70 [24.7K]3 years ago

7 0

Your Answer Would Be:

2.91803278689

Hope This Helps

marta [7]3 years ago

6 0

2.918032787. have a great day!

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Can someone help with explanation what is 2+√12/√27

pychu [463]

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2 years ago

What is the equation for

dangina [55]

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3 years ago

Determine between which consecutive integers the real zeros of f(x)=x^2-4x-2 are located.

Vikentia [17]

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2 years ago

If 7sin²∅+3cos²∅is equal to 4,then evaluate sec∅+cosec∅

Nostrana [21]

Answer:

$\sec \theta + \csc \theta = \frac{2\cdot \sqrt{3}+6}{3}$

Step-by-step explanation:

We proceed to simplify the given trigonometric expression into a form with a single trigonometric function:

1) $7\cdot \sin^{2}\theta + 3\cdot \cos^{2}\theta = 4$ Given.

2) $4\cdot \sin^{2}\theta + 3\cdot (\sin^{2}\theta + \cos^{2}\theta) = 4$ Definition of addition/Associative and distributive properties.

3) $4\cdot \sin^{2} \theta +3 = 4$ $\sin^{2}\theta + \cos^{2}\theta = 1$ /Modulative property

4) $4\cdot \sin^{2}\theta = 1$ Compatibility with addition/Existence of additive inverse/Modulative property

5) $\sin \theta = \frac{1}{2}$ Compatibility with multiplication/Existence of multiplicative inverse/Modulative property/Definition of division

6) $\theta = \sin^{-1} \frac{1}{2}$ Inverse trigonometric inverse.

7) $\theta = 30^{\circ}$ Result.

By Trigonometry, we know that secant and cosecant functions have the following identities:

$\sec \theta = \frac{1}{\cos \theta}$ , $\csc \theta = \frac{1}{\sin \theta}$ (1, 2)

In addition, we know that $\sin 30^{\circ} = \frac{1}{2}$ and $\cos 30^{\circ} = \frac{\sqrt{3}}{2}$ , then the sum of the two trigonometric function abovementioned is:

$\sec \theta + \csc \theta = \frac{1}{\cos \theta} + \frac{1}{\sin \theta}$

$\frac{2}{\sqrt{3}} + 2 = \frac{2\cdot \sqrt{3}}{3} + 2$

$\sec \theta + \csc \theta = \frac{2\cdot \sqrt{3}+6}{3}$

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2 years ago

How many terms are in the binomial<br> expansion of (a + b) ?<br> terms

Vera_Pavlovna [14]

In a binomial expansion it has "two terms." In this case you have a + b and a and b are the terms in this expansion. Terms can be numbers or letters and they are separated by the + or - sign.

Hope this helps.

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2 years ago