All Answers 358087 Answers

Sweet! thank you CPhill!

a) is this

A = 2000(1.04)³  ≈ $2249.73   ......where A is the amount after 3 years

b)   is similar, Nataszaa....just substitute "18' for the exponent of "3"

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c) so we have

2500 = 2000(1.04)^t    .......we are trying to find "t"......

First, divide both sides by 2000

2500/2000 = (1.04)^t   .......simplify this on the left

5/4 = (1.04)^t              ........take the log of both sides

log(5/4) = log(1.04)^t    ........and by a property of logs, we can bring the "t" "out front"

log(5/4) = t log(1.04)   .........divide both sides by log(1.04)

log(5/4)/log(1.04)  = t = about 5.7 years

d) is similar.....just replace "2500" with "3000" and follow the same steps....

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28)    P = 1,860,000(.984)¹²    .....where P is the population after 12 years.....

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And there you go, Nataszaa.....

if you mean log to the base 10, then 0.123 = -logT means that T = 10^-0.123 or 

$${\mathtt{T}} = {{\mathtt{10}}}^{-{\mathtt{0.123}}} \Rightarrow {\mathtt{T}} = {\mathtt{0.753\: \!355\: \!563\: \!733\: \!717\: \!4}}$$

I think the MIN function would return the smallest number in the list (which would be 1 from 5 3 3 1 1), but the questioner is asking for the number that occurs least frequently in the list(which would be 5 from 5 3 3 1 1).

I'm not aware of a simple function in Excel that will do this (though that doesn't necessarily mean there isn't one!).

So I assume we have

(3y³)³ ......... ???...............

=   27y⁹

Use the MIN function in Excel......

This page should help......

i need an answer for a b c d and #28

Thurs 14/8/14

What to do to combat pop-ups

@@ End of Day Wrap :   WEd 13/8/14      Sydney, Australia     Time 9:15pm      ♬  

Hello all,

Most US students were back to school today and the forum was immediately busier.  Our wonderful answerer today included Alan, Will85237, AzizHusain, CPhill, NonjaDevo, Kitty<3, TakahiroMaeda, and Rosala. Thank you all.

I only put aside a couple of post today and here they are:

Some fun here.  

I do not know - I am sorry.

26) Just use the compound int formula

FV=P(1+r)^n

where P=2000

n=number of years

r=0.04

I assume that you want to find the hypotenuse in a right angled triangle.

$$\\h^2=94^2+66^2\\
h^2=13192\\
h\approx 114.856\;inches$$

Melody your right its very confusing!

and anonymous , i totally disagre with u , and for my reason of disagreeing heres the link!

For your expression to be zero you must have the term in brackets in the numerator to be zero; so:

pi²*r⁶ - 64800 = 0 or r = 64800^1/6/pi^1/3

$${\mathtt{r}} = {\frac{{{\mathtt{64\,800}}}^{\left({\frac{{\mathtt{1}}}{{\mathtt{6}}}}\right)}}{{{\mathtt{\pi}}}^{\left({\frac{{\mathtt{1}}}{{\mathtt{3}}}}\right)}}} \Rightarrow {\mathtt{r}} = {\mathtt{4.327\: \!255\: \!548\: \!039\: \!541\: \!4}}$$

$${\mathtt{12\,009}}{\mathtt{\,\times\,}}{\mathtt{40\,013}} = {\mathtt{480\,516\,117}}$$

≈4.81*10^9

Use the calculator on this site for calculations!

$${\mathtt{5}}{\mathtt{\,\times\,}}{\mathtt{60}}{dollar} = {\mathtt{300}}{dollar}$$

If you find multiplication too complicated, just add sixty to itself 5 times.

Or use the calculator on this site.

It depends how big the orange is... the peel thickness won't tell us that.

Let's assume that it is 5cm diameter.

The orange peel reduces this to 4cm diameter, or 2cm radius.

The formula for finding the volume of a sphere is:

=4π2^3/3

=4π8/3

=32π/3 cm^3 is the exact value.

or for a "normal" number

≈33.5 cm^3

If your orange is a different size, just subsititute your dimensions in.

Is this supposed to have a picture with it?  what shape is the cage?

use you calculator and press

3*3=*3=*3=  etc   (*is a times sign)

After you press = look at the answer see if the answer is over 225.  You can stop as soon as the answer is bigger than 225.

If the answer was never 225 then 225 is not a power of 3 

$$-6 \frac{2}{5} - 4 \frac{1}{3} \\\\
=-(6 \frac{2}{5} + 4 \frac{1}{3}) \\\\
=-(6+ \frac{2}{5} + 4+\frac{1}{3}) \\\\
=-(6+4+ \frac{2}{5}+\frac{1}{3}) \\\\
=-(10+ \frac{2*3}{5*3}+\frac{1*5}{3*5}) \\\\
=-(10+ \frac{6}{15}+\frac{5}{15}) \\\\
=-(10 \frac{11}{15}) \\\\
=-10 \frac{11}{15} \\\\$$

OR use a calculator

http://web2.0calc.com/questions/how-do-i-type-in-fractions

Hi,

I am not going to do your assignment for you but i will talk about it a little.

Part A:  You need to work our how much each plant grows in a year.  Then compare the 2 values and see which is bigger.

Part B: this is just for the slow plant, which you decided upon in part A

Time would be on the x axis.  The wording is very strange but i think you are expected to put height on the other axis.     The slope of the line would give you the growth rate.

Now you give it a go.  

Here it is:

please give me the link that you put in the answer of question 14  ! 

No, it isn't a power of 3:   3^4 = 81 and 3^5 = 243

But it is a multiple of 3:  3*75 = 225

I can't see the images either.