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Tema [17]
3 years ago
7

PLEASE ANSWER DUE IN 20 MIN

Mathematics
1 answer:
professor190 [17]3 years ago
5 0

Answer:

Read

Step-by-step explanation:

Mean: add all the values and divide by the number of values

Median: when in order from least to greatest, the middle value

Mode: The value that ocoours most often

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A store reduced the price of a dress from $40 to $15. What percent did they decrease the price?
Valentin [98]

Answer:

They decreased the price by 62.5%

Hope this helps!

Mark me brainliest if I'm right :)

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3 years ago
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Which sequence of transformations results in figures being similar but not congruent?
statuscvo [17]

The answer is A.Because the picture shows.

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4 years ago
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Find the general solution of the nonhomogeneous differential equation x^2y''-2y=3(x^2) -1, (x>0).
Ira Lisetskai [31]

Answer:

G.S=C_1\frac{1}{x}+C_2x^2+x^2logx+\frac{1}{2}

Step-by-step explanation:

We are given that non-homogeneous differential equation

x^2y''-2y=3(x^2)-1

It is Cauchy Euler equation

Substitute x=e^t  x>0

Auxillary equation

D'(D'-1)-2=0

D'^2-D'-2=0

(D'-2)(D'+1)=0

D'-2=0 \implies D'=2

D'+1=0\implies D'=-1

Complementary solution

y=C_1e^{-t}+C_2e^{2t}

y=C_1\frac{1}{x}+C_2x^2

Particular solution

y_p=\frac{3e^{2t}}{D'^2-D'-2}-\frac{e^{0t}}{D'^2-D'-2}

y_p=te^{2t}+\frac{1}{2}=x^2logx+\frac{1}{2}

G.S=C_1\frac{1}{x}+C_2x^2+x^2logx+\frac{1}{2}

Hence, general solution G.S=C_1\frac{1}{x}+C_2x^2+x^2logx+\frac{1}{2}

6 0
4 years ago
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Answer:

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2. is the last one

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3 years ago
What is the solution to this system of equations?
kherson [118]

Answer:

A.

Step-by-step explanation:

When you substitute the coordinates to its corresponding variables, you can compare that answer choice A. is accurate compared to the other answer choices.

4 0
3 years ago
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