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natulia [17]
3 years ago
14

Hhhhhhhhhhhhhhhlllllllllleelpppppppppppppppp

Mathematics
1 answer:
ioda3 years ago
8 0
It is 226 I promise
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1.) Which is the most precise name of this figure? 1. parallelogram
PolarNik [594]

Answer:

Here are the answer to your question

1. Rhombus

2. Diagonals are congruent

Here is the answer for the rest of the quick check if anyone needs them

3. Diagonals are perpendicular and diagonals are congruent

4. 4



8 0
4 years ago
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Definition for equations
MissTica
Here’s your definition

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4 years ago
Find the values of x and y. <br><br> Please show steps
miv72 [106K]
X: 90 degrees. y: 43 degrees

We know that x is a right angle. The way we find y is to add 47 + 90 which gives us 137. We also know that a right triangle adds up to 180. So, we subtract 137 from 180. This means that y would be 43 degrees.
7 0
4 years ago
1. Differentiate with respect to x:<br>​
natta225 [31]

9514 1404 393

Answer:

  a) y' = x^2(3x·ln(6x) +1)

  b) y' = 6e^(3x)/(1 -e^(3x))^2

Step-by-step explanation:

The applicable rules for derivatives include ...

  d(u^n)/dx = n·u^(n-1)·du/dx

  d(uv)/dx = (du/dx)v +u(dv/dx)

  d(e^u)/dx = e^u·du/dx

  d(ln(u))/dx = 1/u·du/dx

__

(a)

  y=x^3\ln{(6x)}\\\\y'=3x^2\ln{(6x)}+\dfrac{x^3\cdot6}{6x}\\\\\boxed{\dfrac{dy}{dx}=3x^3\ln{(6x)}+x^2}

__

(b)

  y=\dfrac{1+e^{3x}}{1-e^{3x}}=1+\dfrac{2}{1-e^{3x}}=1+2(1-e^{3x})^{-1}\\\\y'=-2(1-e^{3x})^{-2} (-3e^{3x})\\\\\boxed{\dfrac{dy}{dx}=\dfrac{6e^{3x}}{(1-e^{3x})^2}}

5 0
3 years ago
The markup of an MP3 player is $207.20. The markup rate is 60%. What is the cost?
ch4aika [34]

If markup is 60% of the cost, you have

... markup = 0.60×cost

... markup/0.60 = cost

... $207.20/0.60 = cost = $345.33

_____

If markup is 60% of the selling price, the other 40% is the cost. So, the cost is 40/60 = 2/3 of the markup.

... cost = (2/3)×markup = (2/3)×$207.20

... cost = $138.13

_____

Markup can be specified in terms of either selling price or cost. Those are the usual reference values; there could be others. When only the percentage is given, you don't have enough information to work the problem. You need to know what it is a percentage of. (Example problems in your text may tell you the expected interpretation.)

5 0
4 years ago
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