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3 years ago

Need help please!!!! Brainiest if answered correctly!!!! No link, it will be reported!!

Mathematics

1 answer:

patriot [66]3 years ago

3 0

The mean increases. When Deleware (2,000: 2) is included the mean must be divided by 9 instead of 8.

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Help plzz! 13 points and will give brainliest!

laila [671]

Answer: This is rly confusing

Step-by-step explanation:

5 0

3 years ago

An exponential function has a starting value of 13 and a growth rate of 0.78%. Write an equation to model the situation.

Elina [12.6K]

Answer:

The equation that models the situation is $A(t) = 13(1.0078)^t$

Step-by-step explanation:

Exponential equation:

An exponential equation has the following format:

$A(t) = A(0)(1+r)^t$

In which A(0) is the starting value and r is the growth rate, as a decimal.

Starting value of 13 and a growth rate of 0.78%.

This means that $A(0) = 13, r = 0.0078$

Write an equation to model the situation.

$A(t) = A(0)(1+r)^t$

$A(t) = 13(1+0.0078)^t$

$A(t) = 13(1.0078)^t$

The equation that models the situation is $A(t) = 13(1.0078)^t$

4 0

3 years ago

I need help with math!! Please answer this!

gizmo_the_mogwai [7]

Step-by-step explanation:

3. (c) complementary since the sum of the angles is 90°

4. 5x + 95 = 180 ---> 5x = 85 or x = 17 ans (d)

5. 68 + x + 90 = 180

x + 158 = 180

x = 22

ans. (b)

6 0

3 years ago

Calculate the slope between the points: (4, -9) and (5, 1)

12345 [234]

Answer:

The answer is A- m=10

Step-by-step explanation:

The way to find slope is known as "Rise over Run" meaning the increase of Y over the increase of X. The increase of Y is 10 because 1 - (-9) = 10. The increase of X is 1 because 5 - 4 = 1. 10 over 1, or 10 / 1, equals 10.

3 0

4 years ago

The number of basketball games that must be scheduled in a league with n teams is given by G(n) = (n2 - n)/2 where each team pla

Pani-rosa [81]

Answer:

There are 7 teams in the league

Step-by-step explanation:

Given that the number of games is given by:

$G(n) = \frac{(n^2-n)}{2}$

The equation will be used to determine the number of games. As we already know, that 21 games are scheduled which means G(n) is 21 so we have to find n when G(n) is 21

Putting this mathematically

$21 = \frac{n^2-n}{2}$

Multiplying equation by 2

$2*21 = 2*\frac{n^2-n}{2}\\42 = n^2-n\\n^2-n-42 = 0\\n^2-7n+6n-42 = 0\\n(n-7)+6(n-7) = 0\\(n-7)(n+6)=0\\n-7 = 0 => n=7\\n+6=0 => n=-6$

As the number of teams cannot be negative, the number of teams in league are 7.

Hence,

There are 7 teams in the league

3 0

3 years ago