All Answers 358514 Answers

- is 1 because it is a line.

+ is 2 because it gets two.

so - * - = + because it gets two line now.

Do you have diagrams to go with this ?

It doesn't make any sense to me.....

4k+7-6k

You can only add and subtract like terms.

Like terms must have the same letters and those letters must have the same powers.

Think of it like this (when adding and subtracting letters)

4 kites + the number 7 -6 kites

=4 kites - 6 kites   + the number 7

Yes I know, you have not got 6 kites to give away - too bad you must have promised more thena what you have got.

=4k+7-6k = 4k - 6k +7 =  -2k + 7

This is given by :

pi * r * L   + pi*r^2      where r is the radius and L  is the slant height.....alternatively.......if the radius and height, h, are known.....then the surface area  is just  pi * r *sqrt(r^2 + h^2) + pi*r^2

Wonderful weather where you are probably.

Not in Washington.

Hi Angelius nice day were having

7% off of 3000 is the same as multipying 3000 by .93......I'll let you finish this one......

The x intercepts occur where y = 0    ....so....

 x^2 - 6x - 9   =  0      complete the square.....add 9 to both sides

x^2  - 6x  =   9            take 1/2 of 6  = 3......square this and add to both sides

x^2 - 6x +  9   = 9 + 9

x^2 - 6x +  9   = 18        factor the left side

(x - 3)^2  = 18               take the square root of both sides

x - 3   =  pos/neg sqrt(18)   =  pos/neg 3sqrt(2)

x - 3  =  pos/neg 3sqrt(2)         add 3 to both sides

x =   pos/neg 3sqrt(2)  + 3    

So   x =    3sqrt(2) +3         and x  =  -3sqrt(2)  +  3

is the math equation written correctly?

What is the measurment of AB when m<A = 70, m<C = 62, and BC = 7.3? You have to use the Law of Sine.

    A

B        C

And we have

AB/sinC  = BC/sinA

AB/sin62  = 7.3/sin70

AB = 7.3* sin62 / sin70  = about 6.86

J's

Let E be the edge length of the larger cube

And the volume = E^3   ...so....

E^3 = 8000  take the cube root of both sides

E  = 20 in

An the smaller cube will have an edge of 10 in and a volume of  (10 in)^3   = 1000 in^3

 x  number of dollars

2x  number of quarters....

x + .25(2x) = 96

x +.50x = 96

1.5x = 96

(3/2)x = 96

x = 64

2x = 128 quarters

cos(x + pi/2)   = cos(x)cos(pi/2)  - sin(x)sin(pi/2)  = cos(x)* (0) - sin(x)* (1)   =  - sinx

Your equation has an infinite number of solutions. A simple one is:

y=1  and  x= -8

Just divide Kilos by days.

It is determined in many different ways:

1): (1 + 1/n)^n.......as n tends to infinity=2.71828.........etc.

2): 1 + 1/1! + 1/2! +1/3! + 1/4!...............=2.71828.........etc.

Have a look at:  https://en.wikipedia.org/wiki/E_(mathematical_constant) 

200 stars!

Very nice, Hayley......!!!!

See what I did here.......http://web2.0calc.com/questions/i-really-need-hep-for-that-please

thnx gtg

I'll see what I can do......

We need to find the number in the intersection, first....and we have

P(M or E)  = P(M) + P(E)  - P(M and E)

300  = 250 + 220  - P(M and E)

P(M and E)  = 250 + 220 - 300   = 170

Here's the Venn diagram :

b).    the student takes Math 128, given that the student takes only one class

130 students only take  one class.......and 80 of these take Math 128 only....so 80/130  = 8/13

c).    the student takes English, given that the student takes Math 128

250 students take Math 128......and of these 170 also take English......so  170/250  = 17/25

d).    the student takes Math 128, given that the student takes English

220 take English.....and of these 170 also take Math 128 ......so    170/220  = 17/22

e).    the student takes neither, given that the student does not take Math 128

The number not taking Math 128   = 50 plus the 20 taking neither  = 70  ........and there are 20 taking neither [none].....so 20/70  = 2/7

[Melody or Alan.....could you check these answers???......I'm not totally confident about these]