All Answers 358516 Answers

40*4=160

ln(x)= 3

x= ?

Since you already have the natural log of x as being 3, then reverse the process by:

e^3=20.08553.........etc, so,

x=20.08553

The answer is "a". Can you solve them?

Here is another way of doing with just ONE variable:

Let the number of students who take french=F, then

F + 15=number of students who take Spanish. But we have:

F + (F + 15)=77 isolate F to one side

2F=77-15=62 divide both sides by 2

F=62/2=31 number of students who take French, therefore,

31 + 15=46 number of students who take Spanish.

That whole thing got old last year. And don't say that you actually need help because that's a lie. If you're old enough to post a question on this site, then you're old enough to know what 9 + 10 is. If you're old enough to post a question on this site, then you should be mature not to make idiotic jokes.

Five times the sum of a number and 3 is the same as 3 multipled by 1 less than twice the number. What is the number? 

Let the number be=N

5N + 3=3(2N - 1)

5N + 3=6N - 3, isolate N

3 +3=6N -5N

N=6

61.5 miles = 3/4 of the way home. What is the total distance?

Let the total distance=D, then we have,

3/4D=61.5 divide both sides by 3/4 or by .75

D=61.5/.75=82 miles- total distance.

0= -175+(200/1+irr)

The IRR for an initial expenditure of $175 and the receipt of one positive cash flow of $200 is=14.29%.

Because, you only have one cash flow, then just divide the cash flow of $200 by the initial expenditure of $175 to get your IRR, thus:

200/175=1.1429 - 1=.1429 X 100=14.29%

what is the total thickness in inches of ninety-six metal disks each 3/8 inch thick?

96 X 3/8=288/8=36 inches-thickness of 96 metal disks.

0.785*x^2=78.5     divide both sides by 0.785

x^2  =  100             take the pos/neg square roots of each side

x = pos/neg sqrt(100)   =   pos/neg (10)

0.785*x^2=78.5 divide both sides by .785

x^2=100 take the sqrt of both sides,

x=10

Don't we at least get a donut, DS?????

Correct! (Well, half-correct!)

The ANSWER!!!: 

The married and couples survived! Good one guys!

The volume of the Atlantic Ocean is about 3.1 x 1017 cubic meters. How many years would it take for the Mississippi River to fill the Atlantic, assuming it has a water flow of 6.3 x 1011 cubic meters per year? Write your final answer in scientific notation, and round to two decimal places.

(3.1 X 10^17) / (6.3 X 10^11)=492,063.49 Years for the Atlantic Ocean to be filled.

How can I solve 0.4^log0.4(10).

0.4^(log10/log0.4)=10

No, never!. Same thing applies to Gamma function. You can try it empirically, for any number > 3. Take 4: 2^4=16; 4!=24; 2^5=32;5!=120.......and gets worse as the numbers go up.

2x^2=5 divide both sides by 2

x^2=2.5 take the sqrt of both sides

x=sqrt(5/2)=1.5811...

Id say about 100 pieces each 3"*5"*20"

sin2x - cosx  = 0

2sinx cos x - cosx = 0      factor out cosx

cosx [ 2sinx - 1]  = 0       set each factor to 0

cosx  =  0   and this happens at 180°

2sinx - 1  = 0    add 1 to both sides

2sinx  = 1   divide by 2

sinx  = 1/2      and this  happens at 30°   and at 150°

JK Married survived lol

Nobody...

The married ones survived.......??????

Solve for z:
z^2-12 z+36 = 0

Write the left hand side as a square:
(z-6)^2 = 0

Take the square root of both sides:
z-6 = 0

Add 6 to both sides:
Answer: |   z = 6
 

or its a zombie fish science has proved it: science made a dead fish swim upstream

"Remember, a dead fish can float downstream, but it takes a live one to swim upstream.