All Answers 358087 Answers

R4 = 3 (cos π 8 + cos π 4 + cos 3π 8 + cos π 2) π 8

Please mind your brackets. thanks.

The exact answer for this version is,

R^4 = -528 pi

Your question does not make sense.

Your exact answer: R^4 = -304 pi

Which one of those two does, or does not, give you an area?

You can work this one out yourself.  

Youy only have to know what one of them is because if it is not correct then you will choose the other :)

idk but drinking bleach is definitely not going to help  :)

1st, side=15.60 meters

2nd.side=40.80 meters (3x the 1st. less 6m)

3rd side=23.60 meters(1st. + 8)

Total of all three sides=80 meters 

AND THERE YOU HAVE IT!.                                                      

5 + 5/8   =  45/8     so we have

(2/15) (45/8)  =

(45/15) (2/8)  =

(3) (1/4)  =

3/4

Let the second side  = x

The first side is 3x - 6

The third side is  (3x - 6)  + 8   =   3x + 2    and we have

(3x - 6) + (x) + (3x + 2) = 80    simplify

7x - 4   = 80      add 4 to both sides

7x  = 84      divide both sides by 7

x = 12m   this is the second side

(3(12) - 6)  = (36 - 6)  = 30m  this is the first side

(3(12) + 2)  = (36 + 2)  = 38m    this is the third side 

OK....we have

2l3x-4l+8=6   simplify    subtract 8 from both sides

2l3x - 4l = -2     divide both sides by 2

l3x - 4 l  = -1  

There is no solution for this because the absolute value can never = a negative [ this is probably why the calculator couldn't give you an answer ]

For example: .25

count the number of digits and use 1+that many zeros as you counted, which would be100 in this case. then you can multiply the decimal (.25) X (100/100)=25/100, then you divide both sides by 25 in this case. So, we get 1/4. And that's how you do it.

i hope u ppl know that those r absolute value bars, not parentheses

-8=1/9(-9t+27)     taking it step-by-step, multiply both side by 9

-72  = -9t + 27     subtract 27 from both sides

-99 = -9t      divide both sides by -9

11 = t

Linear equation=4x+5

Q=14/3 which your answer.

2[3x-4]+8=6   simplify

6x - 8  + 8 = 6  

6x  = 6     divide both sides by 6

x = 1

x=1

37 + 4/5 =    189/5    so we have

(3/8) / (189/5)      invert the second fraction and multiply

(3/8) x ( 5/189)  =  15/1512  = 5/504

Your answer is 3/4

From the limited info you gave,it should be

10 x 5 =50 square units

Each tile is 1.5 ft on a side....so the total area of each is (1.5ft)² = 2.25 sq ft

And the sq footage to be covered is 15 x 6   = 90 sq ft

So

90/2.25  = 40 tiles are needed......arranged as 10 tiles by 4 tiles

t=11, That's your answer.

15 x 6=90 square feet

1 square foot=12 x 12=144 square inches

90 x 144=12,960 square inches

But the tiles are 18 x 18=324 area of each tile in square inches

So, we have 12,960/324=40 Tiles are required.

Your answer is:

5/504

Thanks!

At the bottom of the summation it indicates what it starts on, in this case i starts on 1. At the top of the summation it tells you what the maximum number is that i gets up to. Now you need to sum every number from what you start on up till the maximum.

Your 1st sum translates to $$x_1+x_2+x_3+x_4+x_5+x_6=15$$Your 2nd sum translates to $$x_1+x_2+x_3+x_4+x_5=20$$Your 3rd sum translates to $$\frac{x_1+x_2+x_3+x_4+x_5+x_6+x_7}{7}=8$$

Hope you should be able to do the rest of the problem now =)