All Answers 358523 Answers

That is an awful lot of Q's for one post !

1. Circumference of wheel = pi * d   (inches)       distance travelled for each wheel is pi * d * rpm  (inches per min)

        26 inch wheel      pi * 26 x 200 =  ~~16336.3  inches per minute

    YOU do the 20 inch wheel

2.This is a conversion from in/min   to mile/hr

    26 inch wheel       16336.3 in / min   x  1 ft / 12 in  x  1 mile / 5280 ft    x   60 min / hr  =   15.5 m/hr

    YOU do the 20 inch one

say if we used your graph what would the gradient of the curve be at t=2 s

18.55 <=  wt < 18.65

In other words, Poochie could weigh anywhere from 18.55   up to , but not including  18.65  lbs

Therre are 36 possible rolls 11  12   13  14  15  16     and  61  51  41  31  21   will work    11 out of 36     11/36

(you cannot roll a ' 0 '  so  10 and 20 are not possible)

18.55  18.56   18.57   18.58    18.59

The distance from D to J is 3 small arcs, so a = 360/10*3/2 = 54.

Thanks 

Probability

a) Prob of rain on all three days = 0.7³

b) Prob of rain on Friday and Saturday but not Sunday pfs = 0.7²*(1-0.7)

    Prob of rain on saturday and Sunday but not Friday pss = (1-0.7)*0.7²

    Prob that it will rain on exactly two consecutive days = pfs + pss.

Question: x((x^2)+486922808=97384560000

Answer: x=4593.084081

                =4593.08

I don't know if it's right or not but that's my answer anyway

a. Given is the function f(x)=2x. The graph of this function is mirrored in the x axis and then shifted up two units to form g(x). Give the function rule of g(x). 

b. The graph of f is moved horizontally to make it go through the point (0,8) to form h(x). What would be the function rule of h(x)?

c. Give the transformations if the graph of f goes through the point (0,8) and if the horizontal asymptote is the line y=4

Did you know suka means like it in Indonesian? or was that the whole point? 

Thank you 

I might be able to help except I've no idea what the question is cos the web link is either wrong or just doesn't work. Try putting the question up like you did with you other ones where it's a picture. Then I can have a look and see if I can help you or not 

I have been trying to figure out this question a bit by myself and I think a. would be g(x)= 2^-x  + 2 ? Could someone check if this is alright? I'm not quite sure how to solve b though

How much current does a 10 kΩ resistor draw from a 12.0 V battery?

Find the number of ordered pairs \((m, n)\) of integers that satisfy

\(mn = 2m + 4n\)

\(\begin{array}{|rcll|} \hline \mathbf{mn} &=& \mathbf{2m + 4n} \\ mn-2m - 4n &=& 0 \\ m(n-2) - 4n &=& 0 \\ m(n-2) - 4n +8 &=& 8 \\ m(n-2) - 4(n-2) &=& 8 \\ \mathbf{(n-2)(m-4)} &=& \mathbf{8} \\ \hline \end{array}\)

4 solutions:
\(\begin{array}{|rcll|} \hline 1) & 8 &=& 1*8 \\ 2) & 8 &=& 2*4 \\ 3) & 8 &=& 4*2 \\ 4) & 8 &=& 8*1 \\ \hline \end{array}\)

\(\begin{array}{|rcll|} \hline 1) & (n-2)(m-4) &=& 1*8 \\ & n-2 =1 && m-4 = 8 \\ & \mathbf{n =3} && \mathbf{m = 12} \\ \hline \end{array} \begin{array}{|rcll|} \hline 2) & (n-2)(m-4) &=& 2*4 \\ & n-2 =2 && m-4 = 4 \\ & \mathbf{n =4} && \mathbf{m = 8} \\ \hline \end{array} \\ \begin{array}{|rcll|} \hline 3) & (n-2)(m-4) &=& 4*2 \\ & n-2 =4 && m-4 = 2 \\ & \mathbf{n =6} && \mathbf{m = 6} \\ \hline \end{array} \begin{array}{|rcll|} \hline 4) & (n-2)(m-4) &=& 8*1 \\ & n-2 =8 && m-4 = 1 \\ & \mathbf{n =10} && \mathbf{m = 5} \\ \hline \end{array}\)

An unknown mass is hanging from a spring and the total length of the spring is 32.1 cm. An extra 55 g of mass is added and the string stretches to a total length of 33.5 cm. What is the spring constant of the spring?

Thanks 

DO NOT DELETE YOUR QUESTIONS MATTHEW.

I do not believe you mattewmacdell,

If you wanted to learn you would ask just one of these questions and then you would attempt the others on your own with your increased knowledge.

Thanks Impasta,

I am not totally sure either but Impasta's answer looks logical.  

I think Impasta's method assumes that all the hotel rooms are all different in some way.

If they are identical and the only thing of importance is the way the people are paired off and the number would be much lower.

(I think)

Maybe then you might divide by  10!  But I am really unsure.  

\($63\underline{\hphantom{0}}$ \)

If  this is  divisible  by  3, the  sum of its digits must also be divisible  by 3

The the possibilities for the units digit  are   0 , 3, 6  and  9

The  largest  difference is 9 - 0   =   9

We are asking ourselves  : 4%  of what =  1308  ???

.04  * what   = 1308        divide both sides by  .04

what  =  1308/.04  = 32700