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3 years ago

Could you help me plz

Mathematics

1 answer:

Nadya [2.5K]3 years ago

6 0

Answer:

Step-by-step explanation:

(For a circle)

Circumference formula: π*2r

Area formula: π*r^2

π*2(3) =>6π=>18.84 m

π*(3)^2=>9π=>28.27 m^2

π*2(3.1)=>6.2π=>19.47 m

π*(3.1)^2=>9.61π=>30.19 m^2

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Doss [256]

Answer:

$\frac{1}{ {n} + {2}}$

Step-by-step explanation:

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3 years ago

Prove :<br>sin²θ + cos²θ = 1<br><br><br>thankyou ~

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Answer:

See below

Step-by-step explanation:

Here we need to prove that ,

$\sf\longrightarrow sin^2\theta + cos^2\theta = 1$

Imagine a right angled triangle with one of its acute angle as $\theta$ .

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And by Pythagoras theorem ,

$\sf\longrightarrow h^2 = p^2+b^2 \dots (i)$

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1 year ago

Help needed math 3 - 10 points read closely

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<h2>Hello!</h2>

The answer is:

The answer is the fourth option,

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There, we know that:

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$f(x)=\frac{1}{x}$

We should use the second expression if the value to evaluate is greater or equal than 2.

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