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pantera1 [17]
3 years ago
6

Is (-1,7) solutions of y=4x-1

Mathematics
2 answers:
natima [27]3 years ago
7 0

Answer:103

Step-by-step explanation:

andreyandreev [35.5K]3 years ago
7 0

Answer:

103

Step-by-step explanation:

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Ede4ka [16]

Answer:24

Step-by-step explanation:3x9=27

3+3=6

9+9=18

18+6=24

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David has twice as many cousins as Becky.
Sonja [21]

Answer:

24 cugini

Step-by-step explanation:

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12x2=24

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With the symbols given us the symbol for ten and use the symbol for zero 3 times
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Find an equation for the line tangent to the curve at the point defined by the given value of t. Also, find the value of d^2y/dx
nikdorinn [45]

Answer:

Differentiation will give you the gradient for the tangent at any point, and you use the product rule whenever a function can be thought of as two functions multiplied together.

If

f

(

x

)

=

g

(

x

)

×

h

(

x

)

then

f

'

(

x

)

=

g

'

(

x

)

h

(

x

)

+

g

(

x

)

h

'

(

x

)

so if

y

=

x

×

sin

x

then

d

y

d

x

=

1

×

sin

x

+

x

×

cos

x

=

sin

x

+

x

cos

x

We know that

x

=

π

2

, so the gradient is

m

=

sin

(

π

2

)

+

π

2

cos

(

π

2

)

=

1

+

π

2

×

0

=

1

Therefore, we can say that

y

=

m

x

+

c

y

=

(

1

)

x

+

c

y

=

x

+

c

So all we really need to find now is the value for

c

, the

y

intercept. We do this by working out a point

(

x

,

y

)

on the graph. We are already given that

x

=

π

2

, so

y

=

x

sin

x

=

π

2

sin

(

π

2

)

=

π

2

×

1

=

π

2

∴

(

x

,

y

)

=

(

π

2

,

π

2

)

Now we substitute this into the equation we already have for the tangent,

y

=

x

+

c

,

(

x

,

y

)

=

(

π

2

,

π

2

)

π

2

=

π

2

+

c

c

=

π

2

−

π

2

=

0

∴

y

=

x

+

c

=

x

+

(

0

)

=

x

which means the tangent to the curve

y

=

x

sin

x

at

(

π

2

,

π

2

)

is simply

y

=

x

.

3 0
2 years ago
Members of the Video Digital club produce short videos. At the end
allsm [11]

Answer:

hggggggggjrhg

Step-by-step explanation:

fhhhhhhhgtrhrehr this is the right answer

5 0
3 years ago
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