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ladessa [460]
2 years ago
12

Explain how to divide when the divisor is a decimal.

Mathematics
2 answers:
kicyunya [14]2 years ago
8 0
Multiply the divisor by a power of 10 to make it a whole number.
Multiply the dividend by the same power of 10. Place the decimal point in the quotient.
Divide the dividend by the whole-number divisor to find the quotient.
Yanka [14]2 years ago
3 0

Answer:

Move the decimal point of the divisor to the right until it becomes a whole number. Move the decimal point od the dividend the same number of places, then do the division (long division).

When dividing by a decimal divisor, we use the following procedure:

1)Multiply the divisor by a power of 10 to make it a whole number.

2)Multiply the dividend by the same power of 10. 3(Place the decimal point in the quotient.

4)Divide the dividend by the whole-number divisor to find the quotient.

Step-by-step explanation:

see picture for example..

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Solve the equation for h? X=r-h/y
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Step-by-step explanation:

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2 years ago
The rate of change of revenue (in dollars per calculator) from the sale of x calculators is R′(x)=(x+1)ln(x+1)R ′ (x)=(x+1)ln(x+
jekas [21]

Answer:

Total revenue = \frac{169}{2}\ln(13)-\frac{169}{4}  dollars

Step-by-step explanation:

R'(x)=(x+1)\ln(x+1)

Integrate with respect to x.

R(x)= ∫(x+1)\ln(x+1) dx

Take x+1=u

Differentiate with respect to x

dx=du

So,

R(x)= ∫u\ln(u)\,du

Use integration by parts: ∫f g dx = f∫ g dx-∫(∫g dx)f' dx

Therefore,

R(x)=  \frac{u^2}{2}\ln(u) -  ∫\frac{u^2}{2}\frac{1}{u}\,du

=  \frac{u^2}{2}\ln(u) -  ∫\frac{u}{2}\,du

Put u=x+1

R(x)=   \frac{(x+1)^2}{2}\ln(x+1)-\frac{(x+1)^2}{4}

To find total revenue from the sale of the first 12 calculators, put x=12

R(x)=   \frac{(12+1)^2}{2}\ln(12+1)-\frac{(12+1)^2}{4}\\\\= \frac{(13)^2}{2}\ln(13)-\frac{(13)^2}{4}\\\\=\frac{169}{2}\ln(13)-\frac{169}{4}

Total revenue = \frac{169}{2}\ln(13)-\frac{169}{4}  dollars

4 0
2 years ago
(09.02 MC) Kite DCFE is inscribed in circle A shown below.
AlexFokin [52]
<span>m∠DEF= 1/2(the measure of the arc DEF
</span><span>m∠DEF= 1/2(232)
=116</span>
4 0
3 years ago
Read 2 more answers
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