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AlladinOne [14]

2 years ago

11

Using the formula C = 2πr, how would i find the circumference of a circle with diameter of 28 inches. and i have to round the as

nwer to the nearest inch

1 answer:

arlik [135]2 years ago

5 0

Sorry, this took me a while to upload!

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I don’t understand how to do this

schepotkina [342]

Answer:

The solution is $x =0.$

Step-by-step explanation:

The equation

$\bold{(1).}\: sin(\dfrac{3\pi }{2} +x)+sin(\dfrac{3\pi }{2} +x) =-2$

can be rewritten as

$2* sin(\dfrac{3\pi }{2} +2) =-2$

and can be further simplified to

$sin(\dfrac{3\pi }{2}+x ) =-1$ .

Now, taking the inverse sine of both sides we get:

$sin^{-1}(sin(\dfrac{3\pi }{2} +x) =sin^{-1}(-1)$

$\bold{(2).}\: \dfrac{3\pi }{2} +2 =sin^{-1}(-1)$

The value of the right side on the interval $[0,2\pi)$ is

$sin^{-1}(-1) = \dfrac{3\pi}{2} \: \:( \text{or }270^o)$ ,

which makes the equation (2)

$\dfrac{3\pi }{2}+x =\dfrac{3\pi}{2}$

solving for $x$ gives

$\boxed{x = 0}$

which is our solution.

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2 years ago

What is the area of the house (including the drawing room, TV room, balcony, hallway, kitchen and bedroom)?

Ipatiy [6.2K]

Answer:

The area of the house is A. 1,108

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2 years ago

What is -2 - the radical 15 over 2

Bad White [126]

Answer:

Step-by-step explanation:

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3 years ago

What is Simplify 3^-2 • 3^5

galina1969 [7]

Answer: 3^5 / 3^(-2) = 3^(3)

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3 years ago

You bought a magazine for $5 and some notepads for $3 each. You spent a total of $26. How many notepads did you buy?

german

Answer:

7 notepads

Step-by-step explanation:

5 + 3x = 26

Subtract constant (5)

3x = 21

Divide by coefficient (3)

x=7

8 0

2 years ago

Read 2 more answers