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Anestetic [448]
2 years ago
5

Here is an equation for a circle: (x-3)^2 + (y+10)^2 = 81.

Mathematics
1 answer:
saw5 [17]2 years ago
7 0

Answer: 2.

Step-by-step explanation: Write the equation of the circle using h = 2, k = –1, and r = ... (x – 1). 2. + y. 2. = 4 is a circle with center (1, 0) and a radius of 2.

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Can I please have help with question 2) a and b
Ulleksa [173]

Answer:

\frac{10\sqrt{6} }{3} and \frac{11\sqrt{3} }{3}

Step-by-step explanation:

(a)

A = \frac{1}{2} × 4\sqrt{2} × \frac{5}{\sqrt{3} }

   = 2\sqrt{2} × \frac{5}{\sqrt{3} }

   = \frac{10\sqrt{2} }{\sqrt{3} } × \frac{\sqrt{3} }{\sqrt{3} } ← rationalise the denominator

= \frac{10\sqrt{6} }{3} units²

(b)

Using Pythagoras' identity in the right triangle

let hypotenuse be h , then

h² = (4\sqrt{2} )² + (\frac{5}{\sqrt{3} } )²

    = 32 + \frac{25}{3}

    = \frac{96}{3} + \frac{25}{3}

    = \frac{121}{3} ( take the square root of both sides )

h = \sqrt{\frac{121}{3} } = \frac{11}{\sqrt{3} } × \frac{\sqrt{3} }{\sqrt{3} } ← rationalise the denominator

h = \frac{11\sqrt{3} }{3}

 

7 0
3 years ago
Can you guys help me I need to turn this in at 11:00pm :( . <br> Don’t answer it if you don’t know .
Ostrovityanka [42]
Answers :

1.) Linear

2.) non-linear

3.) non-linear

A linear function is a line that creates a straight line. A non-linear function is a line that creates anything besides a straight line.
6 0
3 years ago
A company is divided into 50,000 shares. An investor purchases 1,000 shares. What percent of the company does the investor own?
AnnZ [28]

Answer:

Step-by-step explanation:

percentage is per 100.

If we have to find x as percentage of y then

formula for percentage is given by = x/y*100

_______________________________________________

Given

total no. of shares = 50,000

Share bought by investor = 1,000

Percentage of share bought by investor

= Share bought by investor/total no. of shares *100

= (1000/50000)*100 = 2%.

It means that if  there are 100 shares for company then investor owns 2 shares of the company. This makes the qualitative analysis easy.

2% percent of the company does the investor own.

7 0
3 years ago
What is equivalent to 2/4
padilas [110]
1/2, 4/8, etc. Because they all equal to one half. <span />
8 0
4 years ago
Read 2 more answers
I need help!!! I know it’s late but I really need help in this math homework
sergejj [24]

Answer:

You will have 21 dollars left

Step-by-step explanation:

7 0
3 years ago
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