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kap26 [50]
3 years ago
12

Help me PLS!!!! <3

Mathematics
1 answer:
inessss [21]3 years ago
6 0

Answer:The answer to your question is cos 30° =  \frac{ \sqrt{3} }{2}

Step-by-step explanation:

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(HOW TO TYPE IN) what is six percent of 7.95<br>​
diamong [38]

Answer:

the answer for that is 6% of 7.95

7 0
2 years ago
Whats 9x-6-13x=94? how do you do it?
rewona [7]
9x-6-13x=94

-4x-6=94

-4x=100

x= -25
6 0
3 years ago
Can someone help me Plz
Dominik [7]

Answer:

A

Step-by-step explanation:

Please give brainliest

7 0
3 years ago
Find the coordinates of the midpoint of the segment whose endpoints are given . e(4,-4) , f (1,7)
laila [671]
Let g(x,y) be the midpoint of the segment ef;
So, x = (4+1)/2; then x = 5/2;
y = (-4+7)/2; then y = 3/2;
Finally, g(5/2,3/2).
3 0
3 years ago
Given a function f(x)=2x^2+3, what is the average rate of change of f on the interval [2, 2+h]?
AveGali [126]

Answer:

4x+2h

Step-by-step explanation:

The average rate of change of a continuous function,

f

(

x

)

, on a closed interval  

[

a

,

b

]

is given by

f

(

b

)

−

f

(

a

)

b

−

a

So the average rate of change of the function  

f

(

x

)

=

2

x

2

+

1

on  

[

x

,

x

+

h

]

is:

A

r

o

c

=

f

(

x

+

h

)

−

f

(

x

)

(

x

+

h

)

−

(

x

)

     

=

f

(

x

+

h

)

−

f

(

x

)

h

 

 

 

 

 

...

.

.

[

1

]

     

=

2

(

x

+

h

)

2

+

1

−

(

2

x

2

+

1

)

h

     

=

2

(

x

2

+

2

x

h

+

h

2

)

+

1

−

2

x

2

−

1

h

     

=

2

x

2

+

4

x

h

+

2

h

2

−

2

x

2

h

     

=

4

x

h

+

2

h

2

h

     

=

4

x

+

2

h

Which is the required answer.

Additional Notes:

Note that this question is steered towards deriving the derivative  

f

'

(

x

)

from first principles, as the definition of the derivative is:

f

'

(

x

)

=

lim

h

→

0

 

f

(

x

+

h

)

−

f

(

x

)

h

This is the function we had in [1], so as we take the limit as  

h

→

0

we get the derivative  

f

'

(

x

)

for any  

x

, This:

f

'

(

x

)

=

lim

h

→

0

 

4

x

+

2

h

     

=

4

x

4 0
3 years ago
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