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3 years ago

SOMEONE HELP ME PLEASE

Mathematics

1 answer:

N76 [4]3 years ago

4 0

Answer:

you did not provide the numbers to answer any question...

but the formula that you want is probably this one

Combination Formula nCr=n!(n−r)!r!

Step-by-step explanation:

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Seven hundred twelve thousandths in standard form and expanded form

pav-90 [236]

Answer:

Standard: 0.712

Expanded: 0.7 + 0.01 + 0.002

Step-by-step explanation:

Seven hundred twelve thousandths

.tenths,hundredths,thousandths

0.712

Every number in expanded fits in its place.

0.712

^ ^ ^

0.7 0.01 0.002

7 0

3 years ago

A brick of mass 4 kg hangs from the end of a spring. When the brick is at rest, the spring is stretched by 3 cm. The spring is t

Zielflug [23.3K]

Answer:

Step-by-step explanation:

In this system we have the force of the spring and the gravitational force. The equation that describes that is

$F_{s}+F{g}=ma\\k(y_0+y)-mg=ma$

where y0 is the equilibrium position when the string is free and y0+y is the new equilibrium position when the object is hanged of the string. By replacing by derivatives we have

$ky_0+ky-mg=ma\\mg+ky-mg=ky=ma\\\\ky=m\frac{d^2y}{dt^2}\\\\my''+ky=0$

the solution for this differential equation is (by using the characterisic polynomial)

$y(x)=Acos(kt)+Bsin(kt)\\k=\omega^2m$

hope this helps!!

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4 years ago

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bazaltina [42]

Answer:

The desktop computers will cost 2,850 and the notebook computers will cost 4,875 and if someone got n notebooks and d desktops it will cost m money

Step-by-step explanation:

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3 years ago

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24/36 - 1/4 <br> answer in simplest form

Zepler [3.9K]

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Step-by-step explanation:

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3 years ago

8- 5 (a + b) + 3 (a - 2b)

Alexeev081 [22]

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