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4 years ago

Estimate sin pi/3 if sin pi/2 = 1 and sin 0 = 0 and sin pi = 0

Mathematics

1 answer:

xxMikexx [17]4 years ago

6 0

Hello :
sin(<span>π/3) = </span><span>√3 / 2 </span>

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Solve the following word problem.

gayaneshka [121]

Answer:

10$ per hour

Step-by-step explanation:

if she spended 120$ and had 180$ left, that means she had 300$ in the first place. of she works 30 hours, that means:

300 (the money she has)

÷ 30 ( her work hours )

When we divide this, the answer is ten. that is why she earns 10$ per hour

8 0

4 years ago

If x=2, then xy = 2y. which property is illustrated

kkurt [141]

I am sure but I am going with Property if equation . this is say if x =2 then 2 x y = 2y .

3 0

3 years ago

Identify the radius and center.<br><br> x^2 + y^2 - 2x + 4y - 11 = 0

miss Akunina [59]

<h2>Hello!</h2>

The answer is:

Center: (1,-2)

Radius: 4 units.

To solve the problem, using the given formula of a circle, we need to find its standard equation form which is equal to:

$(x-h)^{2}+(y-k)^{2}=r^{2}$

Where,

"h" and "k"are the coordinates of the center of the circle and "r" is its radius.

So, we need to complete the square for both variable "x" and "y".

The given equation is:

$x^2+y^2-2x+4y-11=0$

So, solving we have:

$x^2+y^2-2x+4y=11$

$(x^2-2x+(\frac{2}{2})^{2} )+(y^2+4y+(\frac{4}{2})^{2})=11+(\frac{2}{2})^{2} +(\frac{4}{2})^{2}\\\\(x^2-2x+1)+(y^2+4y+4)=11+1+4\\\\(x^2-1)+(y^2+2)=16$

$(x^2-1)+(y^2-(-2))=16$

Now, we have that:

$h=1\\k=-2\\r=\sqrt{16}=4$

So,

Center: (1,-2)

Radius: 4 units.

Have a nice day!

Note: I have attached a picture for better understanding.

5 0

4 years ago

Q plus 12 minus 2=????

Rashid [163]

Answer is: <span>Q+12-2 =<span> q+10</span></span>

4 0

4 years ago

Solve for 8:<br> -0.2 = 8 +(-0.8)

Nookie1986 [14]

S=0.6
Step by step explanation: subtract the greater number by the smaller number. Plug in the decimal after.

6 0

3 years ago