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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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Answer:

In order to understand exponential equations with a whole number and a fraction, we have to revisit the definition.

Exponentiation is just repeated multiplication. For instance, if we have 2^3, we can see that 2 * 2 * 2 = 8. The number keeps getting bigger.

Likewise, if we have (1/2)^3, 1/2 * 1/2 * 1/2 = 1/8. The number keeps getting smaller. Notice a pattern?

When we have a number greater than 1 as a base in an exponential function, the number keeps growing. This is called exponential growth.

In contrast, whenever we have a number less than 1 as a base (i.e. a fraction), the number keeps getting smaller. This is called exponential decay.

Hope this helps.

3 0
3 years ago
How would you describe the area as a sum and a product? thank you:)
Anestetic [448]
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4 0
3 years ago
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<img src="https://tex.z-dn.net/?f=6%20%5Cdiv%20%20%5Csqrt%7B2%7D%20%20%20-%2040%20%5Cdiv%20%20%5Csqrt%7B32%7D%20%20%2B%202%20%5C
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The answer of that equation is 2 and square root of 2
5 0
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What is 4 and 5 eighths
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7x+3(-4x-2)=-6 how do i solve
anastassius [24]

Answer:

Step-by-step explanation:

7x+3  (-4x-2)=-6

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