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Bad White [126]
3 years ago
15

Karen and Tom sold candy bars for a fundraiser, Karen sold 7 less than twice the number of candy

Mathematics
2 answers:
Eddi Din [679]3 years ago
7 0

Answer:

89

Step-by-step explanation:

marin [14]3 years ago
3 0
Create two formulas and use substitution.

K = 2c -7 (89)
T = c (48)
Substitute

K + T = 137

2c-7 + C = 137 (Group)
3c-7 = 137 (Add 7 to both sides)
3c = 144 (divide by 3)
C = 48 (Substitute to each individual)

2(48) -7 = 89
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Find the equation of the tangent to a curve y= 3x² - 6x + 1 at a point​
PolarNik [594]

Answer:y

=

3

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−

1

Explanation:

Find  

d

y

d

x

of  

y

equation

y

=

3

x

2

−

x

3

d

y

d

x

=

6

x

−

3

x

2

Then from the point (1,2) we can obtain the x value which is 1

Insert  

x

=

1

into  

d

y

d

x

d

y

d

x

=

6

(

1

)

−

3

(

1

)

2

d

y

d

x

=

3

To form the equation we have to base it from the original equation

y

=

m

x

+

c

we know that m=3 from  

d

y

d

x

=

3

y

=

3

x

+

c

use the coordinates given fro x and y values to find c

(1,2) x=1 , y=2

(

2

)

=

3

(

1

)

+

c

c

=

−

1

Then we put c back into the general form to get the final tangent equation

y

=

3

x

−

1

Step-by-step explanation:

5 0
3 years ago
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Step2247 [10]

Answer:

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Step-by-step explanation:

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