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LiRa [457]
3 years ago
13

The average number of points you scored in the first 9 basketball games of the season was 23. What do you need in the 10th game

to get your average to n? OA. n-23 OB, 10n-207 O C. 9n-23 D. 207-9n
Mathematics
1 answer:
Vlada [557]3 years ago
3 0

Answer:

B. 10n-207

Step-by-step explanation:

Given,

The average number of points of 9 games = 23,

∵ Sum of observations = their average × number of observations

So, the total points for 9 games = 9 × 23 = 207,

Now, if the average of 10 games is n,

Then the total points for 10 games = 10n,

Hence, the number of points earned in 10th game = the total points for 10 games - the total points for 9 games

= 10n - 207

i.e. OPTION B is correct.

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Find the equation of a circle with a center at (0, -4) and a point on the circle is (6, 0).
EastWind [94]

Answer:

x^2 + ( y + 4)^2 = 52

Step-by-step explanation:

Equation of circle with center (a , b) and radius, r is :

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

Given :  a = 0 , b = - 4

Step 1 : Find the radius.

       Given ( 6 , 0 ) lies on the circle. Therefore the distance between the center (0 , - 4) of the circle and ( 6 , 0 ) gives the radius of the circle.

   r = \sqrt{( 0 - 6)^2 + ( -4 - 0)^2} \\\\

     = \sqrt{ 36 + 16 } \\\\= \sqrt{52}

Step 2 : Equation of circle.

  (x - 0)^2 + (y -( - 4))^2 = (\sqrt{52})^2\\\\x^2 + ( y+ 4)^2 = 52

8 0
3 years ago
Halp me please i don't wanna fail...I wanna pass this test ;--; (MUST BE A EXPRESSION)
vaieri [72.5K]

Answer:

155+27n

Step-by-step explanation:

hope this helps

6 0
3 years ago
Read 2 more answers
How many different triangles can you make that have angels 60˚, 60˚, 60˚ ?
svet-max [94.6K]

Answer:

Infinite

Step-by-step explanation:

A triangle that has all 60-degree angles is equilateral, which means that all side lengths are the same. However, there are infinite possibilities for the side lengths!

I hope this helped, please give brainliest if this is correct! Thank you!

3 0
3 years ago
Read 2 more answers
6 • 14 - (9 + 8) 2 =
Nataly [62]

Answer:

50

Step-by-step explanation:

For this question you would follow the BIDMAS rule - (Brackets, Indices, Division, Multiplication, Addition, Subtraction.)

The first thing in this question you need to solve it (9 + 8)

we do this because, when we follow BIDMAS, the first rule is brackets

so, 9 + 8 = 17

The second step is to multiply, as this rule is second,

so, 17 x 2 = 34

Our final step is to solve the last bit, which is 6 x 14

and we know that 6 x 14 = 84

So now that we have 84 and 34, we need to subtract the two numbers as shown,

84 - 34 = 50

And this is how you get the answer 50

i hope this has helped you, please comment if you did not understand it and i will explain it in another way : )

4 0
4 years ago
Read 2 more answers
I am only doing 15 points because I have asked questions and they just take advantage of the points and don't actually answer th
wariber [46]
The answer to your question would be y=35x+50
6 0
3 years ago
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