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3 years ago

6n2 - 5n2 + 7n2 simplify the expresion and show work

Mathematics

1 answer:

olchik [2.2K]3 years ago

4 0

This is just combining like terms.....
6n2 - 5n2 + 7n2
n2 + 7n2
=8n2

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Simplify (-343,000) 1/3

bixtya [17]

-343,000 x 1/3 = -114,333.333333333219

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3 years ago

3x-2y<10 in a graph graphing linear equalities

faltersainse [42]

Answer:

I hope it will help you!

Step-by-step explanation:

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4 years ago

The measure of arc BCD is

makkiz [27]

Answer:

m∠BCD = 140°

Step-by-step explanation:

ABCD is cyclic quadrilateral. A property of cyclic quadrilateral states that the opposite angles of it sum up to 180°. Here:

m∠A + m∠C =180° and m∠B + m∠D = 180°

So, m∠A + m∠C =180°

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6 0

3 years ago

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

Can someone help me with this problem pls

GREYUIT [131]

Answer:

my answer was 7.5

Step-by-step explanation:

2b+3b-10

4b+3b-10

10-7b=3b fraction bar means divide so...

__ 2

4b because... b-2b=4b and 8-4b=4b

3/4 =7.5 because 4 cant go into three so you add a decimal and a zero and move decimal up and 4 can go into 30 7 time which equals 28 and 30-28 is 2 add another zero and its 20 and 4 goes in 5 times which equals 20 and 20-20=0 so its 7.5 (i hope this helps ;)

8 0

4 years ago