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Crazy boy [7]
3 years ago
11

How to find where the tangent line is horizontal?

Mathematics
1 answer:
NISA [10]3 years ago
3 0
  hello : 
<span>the tangent line is horizontal when the slope = zero.....(f'(x) =0)</span>
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If a water tank already contains 55 gallons of water when baxter begins to fill it and water is flowing in at a rate of 8 gallon
saw5 [17]

Answer:

I think it would be 55+8x. I hope this helps. :)

Step-by-step explanation:

55 gallons of water

8 gallons per minute

It would be 55 gallons (the original amount in the tank) plus 8 gallons per minute. (8x)

x = how many minutes the tank is being filled up more.

so if you were to fill up the tank another 5 minutes, the equation would be 55+8(5)

55+40

95 would be the answer.

6 0
3 years ago
Solve the system of equations algebraically.
Sveta_85 [38]

Answer:

x = -7 , y = 5 thus D)

Step-by-step explanation:

Solve the following system:

{4 x - 4 y = -48 | (equation 1)

5 x - 6 y = -65 | (equation 2)

Swap equation 1 with equation 2:

{5 x - 6 y = -65 | (equation 1)

4 x - 4 y = -48 | (equation 2)

Subtract 4/5 × (equation 1) from equation 2:

{5 x - 6 y = -65 | (equation 1)

0 x+(4 y)/5 = 4 | (equation 2)

Multiply equation 2 by 5/4:

{5 x - 6 y = -65 | (equation 1)

0 x+y = 5 | (equation 2)

Add 6 × (equation 2) to equation 1:

{5 x+0 y = -35 | (equation 1)

0 x+y = 5 | (equation 2)

Divide equation 1 by 5:

{x+0 y = -7 | (equation 1)

0 x+y = 5 | (equation 2)

Collect results:

Answer:  {x = -7 , y = 5

7 0
4 years ago
Jim wants to buy a computer. The total cost is $1,180. If he can save $60 a month, how long will it take for him to save up for
nadezda [96]

If jim wants to buy a new computer he will have to work 20 months.

60 x 19 = 1,140 means he worked 19 months but he doesnt have enough money so if he works 1 more month then he will have enough.

<u>60 x 20 = 1,200</u>

4 0
4 years ago
Read 2 more answers
Write the polynomial in standard form. <br> 5z + 2z^3 - z^2 + 3z^4
pochemuha

Answer:

the standard form of this equation will be 3z^4 + 2z^3 - z^2 + 5z

Step-by-step explanation:

as much as I would like to, I'm really not that good at explaining things

5 0
3 years ago
Helpppppppppppppppppppppppppppppppppppp
Oksana_A [137]

Answer:

Step-by-step explanation:

a/7+b

You simply have to use the values provided in the equation given. If a=49 and b=7 you have

49/7+7, since 49/7=7 you have

7+7 which equals

14

8 0
3 years ago
Read 2 more answers
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