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Ivanshal [37]
3 years ago
10

What is the equation of the circle with center (-3.2,2.1) and radius 4.3?

Mathematics
2 answers:
Nutka1998 [239]3 years ago
8 0
(x+3.2)^2+(y-2.1)^2=4.3^2
marissa [1.9K]3 years ago
8 0

Answer:

(x+3.2)^2+(y-2.1)^2=(4.3)^2

Step-by-step explanation:

It is given that the center of the circle is (-3.2,2.1) and radius is 4.3.

Now, the equation of the circle with center (a,b) and the radius 'r' is represented as:

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

Now, the given center is (-3.2,2.1) and radius is 4.3, thus the equation of the circle becomes,:

(x-(-3.2))^2+(y-2.1)^2=(4.3)^2

(x+3.2)^2+(y-2.1)^2=(4.3)^2

Which is the required equation.

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Consider the function p(c)=2^c+1 . What is p(3)? 8 6 9 -8
Brilliant_brown [7]

Answer:

im gonna say its 6 but im not so sure. But thats my closest answer

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the answer to 4+4-(5-1)
Zanzabum
Your answer would be 4 you go with P.E.M.D.A.S so (5-1)= 4 then 4+4=8-4=4
6 0
3 years ago
By coincidence, Kimberly's Paint Supplies sold equal quantities of two paint colors yesterday: yellow and blue. All yellow paint
Vlad1618 [11]

Answer:

36 liters

Step-by-step explanation:

We solve this question using the least common multiple method

Find and list multiples of the liter the blue paint comes in the liters the yellow paint comes in. We find the first common multiple is found. This is the least common multiple.

Multiples of 9:

9, 18, 27, 36, 45, 54

Multiples of 12:

12, 24, 36, 48, 60

Therefore,

LCM(9, 12) = 36

Hence, the smallest amount of each paint color the store must have sold is 36 liters

8 0
3 years ago
A student solved for the radius of a circle with a circumference of 12π
padilas [110]

Answer:

Step 4 is incorrect  he did not divide correctly from step3 to step 4

Step-by-step explanation:

The circumference of a circle is

C = 2 * pi *r

We know the circumference is 12 pi

12pi = 2 pi *r

Divide each side by 2 pi

12 pi/2pi = 2pi r/ 2pi

6 = r

From step 3 The student did not cancel the pi in the top and the bottom on the right hand side to isolate r

In step 4 he got 6 =pi r  instead of pi

3 0
3 years ago
If 32 teams participate in a standard single elimination tournament, how many games must be played to decide a champion?
SCORPION-xisa [38]
<h3>Answer: 31 games</h3>

======================================================

Explanation:

  • 32/2 = 16 games will happen in round 1. Afterward, 16 teams are left.
  • 16/2 = 8 games will happen in round 2. Afterward, 8 teams are left.
  • 8/2 = 4 games happen in round 3.
  • 4/2 = 2 games in round 4.
  • 2/2 = 1 game as the final championship.

Count the number of times you divide by two and we have five occurrences of this. So there five rounds overall.

To get the total number of games played, we add up the quotients

16+8+4+2+1 = 31

----------------

Or as a shortcut we can simply subtract off 1 since 1+2+4+...+2^n = 2^(n+1)-1

We can write that rule as

\displaystyle \sum_{k=1}^{n}2^k = 2^{n+1}-1

which is equivalent to

\displaystyle \sum_{k=1}^{n}2^{k-1} = 2^n-1

3 0
3 years ago
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