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VashaNatasha [74]

2 years ago

8

How do you write 4/5 in decimal form(Money form)

2 answers:

Oliga [24]2 years ago

4 0

.80 cent if you wright it in percent its 80%

Kazeer [188]2 years ago

4 0

Well 4/5 is equivalent to 80/100

80/100 in decimal form is .8

So your answer would be .8

If you want to write it in money form it would be $0.80

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The solution shown for the equation is incorrect. What is the correct solution? What is the error?

Degger [83]

-9(3-r)=45
-27+9t=45
9r=45+27
R=72/9
R=8
The answer is 8 not -8

5 0

3 years ago

Not sure what the answer is. Please don't answer if you're not sure what the answer is. Thanks!

jek_recluse [69]

Answer:

c: exponential growth

Step-by-step explanation:

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3 years ago

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faust18 [17]

Answer:

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Step-by-step explanation:

5 0

3 years ago

A competitive knitter is knitting a circular place mat. The radius of the mat is given by the formula

Ilia_Sergeevich [38]

Answer: A. $A'(t)=\frac{4356\pi}{(t+11)^{3}}-\frac{527076\pi}{(t+11)^{5}}$

B. A'(5) = 1.76 cm/s

Step-by-step explanation: <u>Rate</u> <u>of</u> <u>change</u> measures the slope of a curve at a certain instant, therefore, rate is the derivative.

A. Area of a circle is given by

$A=\pi.r^{2}$

So to find the rate of the area:

$\frac{dA}{dt}=\frac{dA}{dr}.\frac{dr}{dt}$

$\frac{dA}{dr} =2.\pi.r$

Using $r(t)=3-\frac{363}{(t+11)^{2}}$

$\frac{dr}{dt}=\frac{726}{(t+11)^{3}}$

Then

$\frac{dA}{dt}=2.\pi.r.[\frac{726}{(t+11)^{3}}]$

$\frac{dA}{dt}=2.\pi.[3-\frac{363}{(t+11)^{2}}].\frac{726}{(t+11)^{3}}$

Multipying and simplifying:

$\frac{dA}{dt}=\frac{4356\pi}{(t+11)^{3}} -\frac{527076\pi}{(t+11)^{5}}$

The rate at which the area is increasing is given by expression $A'(t)=\frac{4356\pi}{(t+11)^{3}} -\frac{527076\pi}{(t+11)^{5}}$ .

B. At t = 5, rate is:

$A'(5)=\frac{4356\pi}{(5+11)^{3}} -\frac{527076\pi}{(5+11)^{5}}$

$A'(5)=\frac{4356\pi}{4096} -\frac{527076\pi}{1048576}$

$A'(5)=\frac{2408693760\pi}{4294967296}$

$A'(5)=1.76268$

At 5 seconds, the area is expanded at a rate of 1.76 cm/s.

5 0

2 years ago

Josh's chicken soup recipe calls for 2 1 / 2 L of chicken stock. Josh makes 3 1 / 4 times the recipe for a family reunion. How m

Nataly_w [17]

Required amount of chicken stock = $2\frac{1}{2}$ = $\frac{5}{2}$ L

Total amount of extra recipe made = $3\frac{1}{4}=\frac{13}{4}$ L

Total amount of chicken made is = $\frac{13}{4} * \frac{5}{2}= \frac{65}{8}$ L

Hence Josh made total $\frac{65}{8}$ L of chicken soup.

Converting it to mixed fraction we get,

$8\frac{1}{8}$ L

5 0

3 years ago