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3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679

It's B mate

Thanks man, I try..

\(m=\frac{y_2-y_1}{x_2-x_1}\)

See the correct answers to two of your questions 5 and 6 questions below this one.

If you put your equation in the form   y= mx + b     m=slope

or

slope = TAN(angle)

or

Slope =  rise/run     between two sets of points   

           =  (y2-y1) / (x2-x1)

A(t) = 100,000(1.035)4t.

(1.035)^4=1.147523000625 - 1 =.1475 X 100=14.75% Effective annual rate.

A(t)=100,000(1.035)^4*15

A(t)=100,000(1.035)^60

A(t)=100,000 X 7.8780909....

A(t)=$787,809.09 FV of $100,000 @ 3.5% per quarter compounded quarterly.

From the answers above, it can be seen that the answer is B

Do you have a diagram???

Is there a problem with your posting things???  This question is posted FOUR times !!

IF your equation is transcribed correctly, just substitute M=3,000,000,000 into the equation and solve for 't'     IS your equation written correctly?   I question the '0.78' portion.....is that SUPPOSED to be part of the EXPOPNENT??    0.15e^(.3t+.78)  ???

OK  M=3   (NOT 3000000000)      results in t=8.982       I would go with 'A'  

Please DON'T post your question twice. See the answer under your 1st question below.

can someone help me? 

During the past 10 years, the amount of money, M (in billions of dollars), spent in North America by car dealerships advertising their product can be modeled by the equation M = 0.15e^0.3t + 0.78. In what year was about $3 billion (M = 3) spent by car dealerships in advertising?

A. t = 9 

B. t = 10

C. t = 8

D. t = 3

Solve for t: 3 = 0.202479 t+0.78 3 = 0.202479 t+0.78 is equivalent to 0.202479 t+0.78 = 3: 0.202479 t+0.78 = 3 Subtract 0.78 from both sides: 0.202479 t+(0.78-0.78) = 3-0.78 0.78-0.78 = 0: 0.202479 t = 3-0.78 3-0.78 = 2.22: 0.202479 t = 2.22 Divide both sides of 0.202479 t = 2.22 by 0.202479: (0.202479 t)/0.202479 = 2.22/0.202479 0.202479/0.202479 = 1: t = 2.22/0.202479 2.22/0.202479 = 10.9641: Answer: | | t = 10.9641 Years

Even though the answer is closer to 11 years, it will do to say the answer is B as can be seen.

sin 30 = 0.5       0.5 (29'42")  =   14.5'  21"      .5' = 30"  so     14' 51"

Rearrange both for either X or Y I think then you should be able to sub one into another


i.e. X = 4-2y

      X = 4+2y/3

4-2y = 4+2y/3
12-6y = 4+2y

8 -6y = +2y

8 = 8y

y = 1 

x+2y = 4

x+ 2(1) = 4

x + 2 = 4 

x = 2 

therefore point of intersection is (x=2, y=1)


I think.. someone might have to correct me on this though..

why did you inverse it :)

These are EACH the equation of a line.   Where they INTERSECT  x and y will satisfy BOTH of the equations....so just solve for x and y

From the FIRST equation   x=4-2y

Sustitute THIS 'x' into the SECOND equation

3 (4-2y) -2y = 4

12-6y-2y =4

-8y = -8

y = 1            Since x=4-2y    x=4-2 = 2

x,y = 2,1  You can sustitute these values into the TWO original equations to find this is true.

I'd go with C also is 't' is in minutes.       As a check, substitute t= 60 min (one hour)to see if it equals the original equation     1.0092^60 = 1.73    OK   

Incidentally IF equation A was written as  5000(1.73)^(t/60)   it would be the same...

Thank you.

A. t = 9 

B. t = 10

C. t = 8

D. t = 3

its supposed to be  M = 0.15e^0.3t + 0.78

the 0.3t is an exponent 

Hiya! What do you mean my scientific notation?

Furthermore, it depends on the model of your calculator.

That's for sure Guest!

and tbh there are many racists in this world Coldplay

IF your equation is transcribed correctly, just substitute M=3,000,000,000 into the equation and solve for 't'     IS your equation written correctly?   I question the '0.78' portion.....is that SUPPOSED to be part of the EXPOPNENT??    0.15e^(.3t+.78)  ???

Haha...THAT's funny.....