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3 years ago

A distance race is 42 kilometers. Kylie has completed 16 distance races. How many kilometers has she run ?

Mathematics

2 answers:

garri49 [273]3 years ago

5 0

Answer:

672

Step-by-step explanation:

Multiply 42 by 16 and u get 672

Alenkasestr [34]3 years ago

5 0

Answer:

672

Step-by-step explanation:

42 x 16 = 672

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Find the general solution of (x+3)y’=2y

gregori [183]

Answer:

$y=C(x+3)^2$

Step-by-step explanation:

We are given:

$\displaystyle (x+3)y^\prime=2y$

Separation of Variables:

$\displaystyle \frac{1}{y}\frac{dy}{dx}=\frac{2}{x+3}$

So:

$\displaystyle \frac{dy}{y}=\frac{2}{x+3} \, dx$

Integrate:

$\displaystyle \int\frac{dy}{y}=\int\frac{2}{x+3}\, dx$

Integrate:

$\displaystyle \ln|y|=2\ln|x+3|+C$

Raise both sides to e:

$|y|=e^{2\ln|x+3|+C}$

Simplify:

$|y|=(e^{\ln|x+3|})^2\cdot e^C$

So:

$|y|=C|x+3|^2$

Simplify:

$y=\pm C(x+3)^2=C(x+3)^2$

5 0

3 years ago

A paper is in the form of a rectangle ABCD in which AB= 18 cm and BC=14cm.A semicircular portion with BC as diameter is cut off.

svetoff [14.1K]

Answer:

remaining portion is area= area of rectangle- area of semicircle

= 18*14 - 3.14*7^2

=252-154.86

=199.86cm^2

7 0

3 years ago

Which expression is equivalent to 3x+10−x+123x+10−x+12 ?

kati45 [8]

I think its 2 I'm not 100% though

6 0

3 years ago

ASKING AGAINN COMONN YALL

densk [106]

Answer:

20 units

Step-by-step explanation:

The y axis is 2-6 so subtract 6 and 2 which is 4

the x axis is 3-9 so subtract 9 and 3 which is 6

The other sides are the same

4+4+6+6= 20

3 0

3 years ago

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What is the Distance formula of (-6, -12) and (4,8)<br>Distance formula is in picture

nignag [31]

YES IT IS THE RIGHT FORMULA IN UR PHOTO !

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6 0

2 years ago