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Okay, now I pick one

7905

Okay, now add up the chosen numbers (exept for the "future number")

I am not familiar with these problems and don't know how to help you, but here are some ideas...

If you can make the exponent equal to zero on both sides, you could always have a solution. 

3^x = 2^x if x = 0, then there is a solution. If the problem says that x is not equal to zero, then I don't know.

I have no idea for the second one. 

what would it be simplified?

if the area of ABE = 6, AB is 6 * 2 = AB * 4 

AB = 3 

Because AB = BC, AC = 6 

Using the pythagorean theorem, 4^2 + 6^2 = x^2

x = √52

2094

Translate the center of  dilation to the origin  <  4, 3 >

This gives us   < x + 4, x + 3 >

Apply the scale factor  < 2x + 8 , 2x + 6 >

Shift back again < 2x + 8 - 4, 2x + 6 - 3 > 

The rule becomes   < 2x + 4 , 2x + 3 >

So  A'  is  < 2(-4) + 4, 2(-1) + 3 >   =   ( -4, 1)

B' is < 2(-4) + 4 , 2(-3) + 3 > = (-4 , -3 )

C' is  < 2 (-1) + 4, 2(-3) + 3 >  = ( 2, -3)

The nth term = 3n^2 - 2n + 5 (for all terms given)

Check your question and make sure it is OK. "3 -" at the beginning??

I think this is  :

27^(1/4) / 3^x = 9^(2/7)

(3^3)^(1/4) / 3^x  = (3^2)^(2/7)

3^(3/4) / 3^x  = 3^(4/7)    rearrange as

[ 3^(3/4) ] / [ 3^(4/7) ] =  3^x    

[ 3^ ( 3/4 - 4/7) ]  = 3^x

[ 3 ^ [ (21 - 16) / 28 ]  = 3^x

3^(5/28)  = 3^x

So  x  =  5/28

The Mean=[ (12 x 170) + (8 x 160)] / 20 =166 cm

Thanks guys. I was wooried no one was going to answer me.

I guess i didn't have to help when you're here 

Thanks, YE.......T    !!!!!!

now that you know the other side is 8 simply do 8 * 1.8 = 14.4 

but remember since its a triangle you have to halve it which is 7.2

Angles don't have "areas "

The area of the triangle is   PQ * QR / 2  =  [1.8 * 8 ]  / 2  =  7.2 units^2 

thxthere is a part b

Number of possible sets  is  C(5,2)  = 10

A negative will occur when  any 3 of the negatives are multiplied by  each of the two positives

So......this will produce   3* 2  =  6 sets

So...the probability  is  6 / 10   =  3 / 5

Use Pythagoras if its 90 degrees 

formula = a^2 + b^2 = c^2 

not sure about whether 8.2 is the longest side but this is what you do if it is 

8.2^2 - 1.8^2 = 64

then you squareroot 64 which is 8

now you can add them all together 8+8.2=1.8 =18

We have a right triangle

1. One leg is  280 km and the other is 210 km

So......the time it takes to fly  these two legs  is  [ 280 + 210 ] / 420  =  490/420  = 7/6 hours  =

1 hr  10 min  

Add the 50 minute stop  and it arrives at 9:25

2.  Using the Pythagorean Theorem  the shortest distance back  is

√ [ 280^2 + 210^2 ]  =  √122500 =  350 km