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3 years ago

the airline Middle School girls soccer team won 80% of the games this season if they won 12 games did they play

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

4 0

Answer:

15 games

Step-by-step explanation:

80% of 15 is 12, it's as easy as that. Hope it helps!

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Consider the function f ( x ) = − 2 x 3 + 27 x 2 − 108 x + 9 . For this function there are three important open intervals: ( − [

Darya [45]

Answer:

A=3 and B=6

Step-by-step explanation:

Increasing and Decreasing Intervals of Functions

Given f(x) as a real function and f'(x) its first derivative.

If f'(a)>0 the function is increasing in x=a

If f'(a)<0 the function is decreasing in x=a

If f'(a)=0 the function has a critical point in x=a

As we can see, the critical points may define open intervals where the function has different behaviors.

We have

$f ( x ) = - 2 x^3 + 27 x^2 - 108 x + 9$

Computing the first derivative:

$f' ( x ) = - 6 x^3 + 54 x - 108$

We find the critical points equating f'(x) to zero

$- 6 x^3 + 54 x - 108=0$

Simplifying by -6

$x^2 -9 x +18=0$

We get the critical points

$x=3,\ x=6$

They define the following intervals

$(-\infty,3),\ (3,6),\ (6,+\infty)$

Thus A=3 and B=6

3 0

3 years ago

I don’t really understand?

aksik [14]

Go over the x axis up 5 and over the y axis left 1

3 0

3 years ago

Help please need help

alexandr402 [8]

Answer:

sorry I'm too nood for that

3 0

3 years ago

Write the equation of the line y=(5)/(6)x+(7)/(6) perpendicular to

Travka [436]

Answer:

6x + 5y + 13 = 0.

Step-by-step explanation:

y = 5/6x + 7/6

Gradient = 5/6

Since the line is perpendicular to y = 5/6x + 7/6

then its gradient is -6/5.

Hence its equation is: point (-8,7).

y - 7 = -6/5(x -(-8))

multiplying through by 5 we get;

5y - 35 = -6(x + 8)

5y - 35 = -6x - 48

6x + 5y + 13 = 0

4 0

3 years ago

What is h(-2) H(-1.75) H(1)

ruslelena [56]

$h(x)=\left\{\begin{array}{cccc}-2&if&-2\leq x$

3 0

3 years ago