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zaharov [31]
2 years ago
5

Draw the circle ( x − 1 ) 2 + ( y + 2 ) 2 = 9

Mathematics
1 answer:
MArishka [77]2 years ago
3 0

The required circle will have a radius of 3 units and centre at (1, -2)

<h3>Equation of a circle</h3>

The standard equation of a circle is expressed as shown;

(x-a)^2+(y-b)^2 = r^2

where

(a, b) is the centre of the circle

r is the radius of the circle

Given the equation of the circle below;

(x − 1)^2 + (y + 2)^2 = 9

(x − 1)^2 + (y + 2)^2 = 3^2

Find the centre and radius

centre = (1, -2)

radius = 3

This shows that the required circle will have a radius of 3 units and centre at (1, -2)

Learn more on equation of a circle here: brainly.com/question/14150470

#SPJ1

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There are a total of 64 students in a drama club and a yearbook club .The drama club has 10 more students than the yearbook club
tatiyna

Answer:

x + y = 64

x + 10 = y

Step-by-step explanation:

Since it isn't asking for the solutions, I won't solve.

let y represent drama students, and x represent the yearbook students.

We know that  DS (drama students) plus YS (Yearbook students) equals 64 students in total. To write this mathematically you would write x(YS)+ y(DS) = 64 (Students in total) except just <em><u>x + y = 64</u></em>.

The second part of this system explains what y is.

We know that the drama club has 10 more students than yearbook students, so YS plus 10 equals the amount of DS. To write this mathematically you would write <em><u>x + 10 = y</u></em>.

Combine the two systems by writing

x + y = 64

x + 10 = y

<em>P.S. Let me know if you need the system solved.</em>

7 0
3 years ago
Please answer only if you know for sure :) Comes from pre-calc btw
vladimir2022 [97]

Answer:

x^2 and x

Step-by-step explanation:

4 0
3 years ago
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gogolik [260]

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translate in eng

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What is the value of the fourth term in a geometric sequence for which a1=15 and r=1/3
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Formula: an = a1(r)^n-1

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