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https://web2.0calc.com/questions/pls-help_10037

A answer without using trig already answered.

Hope this link helps

The longest possible value of AC is 18.

I need help with this ASAP. Please help 

Your welcome! Always glad to help!

Thanks! That helped.

Your off by 6

8*9 = 8+8+8+8+8+8+8+8+8 = 72

Well i got F = -10/3x + i(sqrt(2)*sqrt(x)/3x)

I always such at those long calculations. I always end up making a dumb error like 2+3 = 6. 

99999999999*99999999999

0000000000

(100000000000-1)(100000000000-1)

10000000000000000000000-2*100000000000+1

:))

=^._.^=

"8 x 9"

8 times 9 is like saying 8 plus 8 ... but 9 times.

That process would take too long so to learn this you would either have to memorize your multiplications or do long multiplication.

The answer is 72
 

8 x 9 = 72

8+8+8+8+8+8+8+8+8 

add  2    add 4    add 6     add 8    add 10   etc

31    43    57  

We have to figure out what c is...

First, we multiply the c and 1/3 this turns it into...

1c/3 = 9 

We easily know multiplying anything by 1 keeps it the same so we can remove the 1

c/3 = 9

Now we multiply 3 on both sides to cancel the fraction

c = 27

Hope this helped! 


 

The next three numbers in this pattern is 1,3,7,13, 21, 31, 43, 57. +2, +4, + 6 ... 

Let  the number   of nails  in a small box =  N

Then  the  number  in a large  box = N +  20

And we  know   that

The  number  in two large  boxes = (1/2)  the  number  in six small boxes....so....

2 * (N + 20)  = (1/2) (6N)         simplify

2N + 40   =  3N

40  =  3N - 2N

40  =  N  = the  number of nails ina  small  box

40  + 20  =  60   =  the  number of nails in alarge  box

I think this should be off topic, also the format is kinda bad ngl

1/3 c = 9     multiply both sides of the equation by 3

c = 27

⅓ c = 9

c/3 = 9

c = 27

since 1/3 of c = 9 that means 3/3 c = 9+9+9 or 9*3. That equals 27 so c=27

https://web2.0calc.com/questions/mathematics-fractions

9.9  + 1/2 (9.9)pi +2 h = 51.4

h = 12.97 ft  (of the rectangular area)

Area =   9.9 * 12.97     +  1/2 (9.9/2)^2 pi = 166.93 ft²

2( W + L)   = W*L

2(4  + L)  =  4*L

8 + 2L  = 4L

8=  2L

L =  8/2   =   4