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what is a fish with out an "I"?

how far will a car travel in 3 hours 15 minutes at an average speed of 60mph 

3hr 15min = 3 1/4 hours  = 3.25  hours

speed = distance / time

60=d/3.25

multiply both sides by 3.25 :)

The answer is 

7.04216349541931⋅10¹

Can anyone loan me their glasses please.

I definitely need different - better ones tonight  !!!    LOL     

6/4 as a decimal is 1.5

5(6*10^3+400) in standard form?

5(6400) = 32000 

Now you have to have just one digit in front of the decimal point  so that is   3.200

now 32000 is a big number (bigger than 1) so the power will be positive

The number was 32000.

Now it is             3.2000

How many numbers did you have to jump the point over?    That is the power.

so the answer will be      3.2000 x 10^ however many places you moved the point

Would you like to tell me the proper answer now?   :)

What is the area and perimeter of a rectangle with a width of 5.7m and a length of 8.6 equal

Ok, I want you to draw a rectangle on a peice of paper.

Now put 5.7m and 8.6m on two of the sides.

Now i want you to put the lengths on the other two sides as well.

Now the perimeter is the distance around the outside.  

You tell me how to find that and what the answer is please :)

Did you mean "if the clock shows 11:59"? Wording is very important in maths questions.

Find the measure of an exterior angle in a regular 21-gon.

3 sides     180 degrees total

4 sides      180(4-2)

5 sides       180(5-2)

n sides angle sum is 180(n-2)

21 sides angle sum is 180(21-2) = 180*19 = 3420

each angle in a regular 21-gon will be           3420/21 = 162.8571429 degrees  (apprrox)

external angle = 360 - 162.8571429 =  197.1428571degrees = 197 degrees 8 minutes and 34.29 seconds approximately

Oh, I just realizedthat guest thinks you mean 2 cards out of a deck of cards.

Really your question is too vague.  We do not know what you mean :((

But the numbers will be multiplied together - not added. :)

You pick a one of two card, roll a 6 sided  die, spin a two sided spinner, and find the sum. How many different sums are possible? Please help

I will assume all the numbers are different. and no 3 produce the same sum.

Then there will be     2*6*2=24 different possible outcomes.

Of course,

People who become known as keen students recieve a great deal of help and encouragement here.

You may have to put yourself forward  -

Be quick to comment on answers, it doesn't matter if you are saying thankyou or if you are saying you still do not understand :)   Never say you understand if you do not!

It is easier if you are a member because your question will be in your watchlist so you will always be able to find it and you can see if any new answers have come in.  You can even get notified that a new answer has come in by email if you want.  

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Hey kids, why don't you give yourselves names?

I'd like you to join up but if you don't want to you could still choose a name and put it on all your posts.

That way people would know if they are talking to the same guest or a different one. :)    

(-4,-5);Undefined slope

y=mx+b

-5=m*-4+b

-5=-4m+b

b=4m-5

y=mx+4m-5

jc and Hayley,  

Why don't you both join up?

It is better here if you are a proper part of the community.  It is free and easy.   

Time?

Yep One of them is wrong....and it's my answer    the answer is 100...I made a typo. The 4th term in my sequence should read (17+13)    NOT   (7 +13)

11:59  Like you said.

11:44

A slight mistake in guest#2  answer.

He/she should have said P =pennies when jar is FULL  (not 1/4 full)

then

1/4P + 30 = 1/3P

1/3P - 1/4P = 30

1/12P = 30

Multiply both sides by 12

P=Full jar=360

We want to know how many pennies when 3/4 full

3/4 P =  3/4 (360) = 270 when 3/4 full.

25?

is this a trick question?

Dunno.....  right click them and then delete?     Highlight them and then use the 'delete' key?   Is there any tools listed at the top of the bookmark list like 'edit' or 'organize'....maybe there?

I looked at a few different ONLINE calculators....seems a split between -81 and 81...I do not know what core engine the calculators are using though....in my random sample a few more said 81 and not -81  

I think it is like you said ...'know your tools and how to use them'    ....wise words

~jc

9^-2=1/(9^2)=1/81.

oh dear lord.. this again >_<