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3 years ago

Find the length of arc AC express in terms of pi

Mathematics

2 answers:

nordsb [41]3 years ago

5 0

I do not know the answer but i do know that PI is 3.14159265359

Effectus [21]3 years ago

3 0

the answer is 5 because i jus took that

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Can someone solve this?

ladessa [460]

First question:

Recall that $\cos^2x+\sin^2x=1$ and $\sqrt{x^2}=|x|$ for all $x$ . So

$\sqrt{1-\cos^2x}=\sqrt{\sin^2x}=|\sin x|$

$\sqrt{1-\sin^2x}=\sqrt{\cos^2x}=|\cos x|$

For $0$ , we expect both $\cos x>0$ and $\sin x>0$ (i.e. the sine and cosine of any angle that lies in the first quadrant must be positive). By definition of absolute value, $|x|=x$ if $x>0$ .

So we have

$\dfrac{\sqrt{1-\cos^2x}}{\sin x}+\dfrac{\sqrt{1-\sin^2x}}{\cos x}=\dfrac{\sin x}{\sin x}+\dfrac{\cos x}{\cos x}=1+1=\boxed{2}$

making H the answer.

Second question:

C is always true, because the inequality reduces to x > y.

6 0

3 years ago

Simplify the given expression. (p+6)(p-4)

vampirchik [111]

Answer:p2+2p−24

Step-by-step explanation:(p+6)(p−4)

=(p+6)(p+−4)

=(p)(p)+(p)(−4)+(6)(p)+(6)(−4)

=p2−4p+6p−24

=p2+2p−24

8 0

3 years ago

Read 2 more answers

If y varies inversely as n and m = 8 when n = 3 find m whenn =12

zepelin [54]

Answer:

Step-by-step explanation:

m=8x4 n=3x4 so that is the answer

6 0

2 years ago

95° 60° 29 o X = Plzzzz I need this

Mila [183]

Answer:

x=95

Step-by-step explanation:

They are vertical angles

4 0

3 years ago

2) Jim invested $4,000 in a bond at a yearly rate of 4.5%. He earned $540 in interest.

zmey [24]

The money was invested for 3 years

7 0

3 years ago