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Vlada [557]
3 years ago
5

True or false

Mathematics
1 answer:
Sindrei [870]3 years ago
6 0
That statement is true, because a differentiable function must be continuous, and the only way to reach two relative maxima,, if the function does not have empty places or jumps, which is what continuity means, is that the graph bends between those two maxima and reach an intermediate minimum.
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Which value of x will make the following statement false?
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4. The money in Mrs. Finch’s savings account is earning 1.45% interest. Which number below is greater than 1.45%
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Four cookies and three cupcakes code $13.25. Five cookies and two cupcakes cost $11.75. Give the system of equations that could
Kaylis [27]

Answer:

  • cookie: $1.25
  • cupcake: $2.75

Step-by-step explanation:

Let x and y represent the cost of a cookie and a cupcake, respectively.

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___

By Cramer's rule:

  x = (3(11.75) -2(13.25))/(3(5) -2(4)) = 8.75/7 = 1.25

  y = (13.25(5) -11.75(4))/7 = 19.25/7 = 2.75

The cost of one cookie is $1.25; the cost of one cupcake is $2.75.

_____

Cramer's rule gives the solution to the system of equations ...

  ax +by =c

  dx +ey = f

as ...

  ∆ = bd -ea

  x = (bf -ec)/∆

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7 0
3 years ago
What percent of 2000 is 160?<br> Show work
ArbitrLikvidat [17]

Hello from MrBillDoesMath!

Answer:

.08%

Discussion:

Let the percent be denoted "p". Then

2000 * p% = 160 =>     ( as p% = p/100)

2000* p/100 = 160 =>

20p = 160 =>

p = 8 or .08%



Regards,  

MrB


5 0
3 years ago
Read 2 more answers
if the product of two positive fractions a and b is 15/56 find three paris of possible values for a and b
Daniel [21]

That will be easy. It could be 12/56+3/56 or, 7/56+8/56 or, 10/56+5/56.

7 0
3 years ago
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