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#1 Re: Help Me ! » tvm solver » 2019-04-19 13:37:16

here is my answers can someone correct if i am wrong

thanks

https://imgur.com/a/mmBujDP

#2 Re: Help Me ! » tvm solver » 2019-04-19 08:57:03

I am using tvm solver ..don't need formulas

here is what i input correct me if i am wrong ...

HERE IS MY TVM SOLVER ANSWER PLEASE CORRECT ME IF WRONG. PLEASE POINT WHERE IS THE ERROR

https://imgur.com/a/wHxQgXW

#3 Help Me ! » tvm solver » 2019-04-16 15:00:52

yorkmanz
Replies: 3

Using the t1-83 plus TVM solver or similar tool. create complete tables like the following to see which option is the

most effective investment. the choices are monthly payments of $200 at annual interest rate 5% for 10 years(option

A). doubling the payments (option B). doubling the interest (option C) or having the payment/compounding periods

take place twice as often (option D).


STATE WHICH OF THESE OPTIONS IS THE BEST AND WHY IT IS THE MOST EFFECTIVE.


https://imgur.com/a/UFjWYIx



don't have the tvm solver any one can help


thanks

#4 Re: Help Me ! » compound interest » 2019-04-14 09:48:22

ganesh wrote:

Hi,

The compound interest formula:

or

where A is the Amount, P is the Principal, r or i is rate of interest per period (e.g. per month, per quarter, per annum etc.).

1.) When i increases, and n also increases, A and P increase. When i decreases n also decreases, A and P decrease.

when i increases and n decreases, or vice versa, the change is caused dependent on the values.

2). Amount and Principal is dependent on i, as well as n.



thanks for replying...


for 1:) since n is constant i think its just  Simple interest and principle

if

n = 1

=A = P(1+i)^n =

=P(1+i)^1

= P(1+i)


now we know that i = r/n

since r n=1,

i = r = interest rate

then we have A = P + P*i

i think its just  Simple interest and principle and we have

now the This is  a linear equation.


for 2:) TRICKY

if  i is a constant, this is an exponential equation  `a=b^n` where `b=P(1+i)` , `b` a constant. if (In this case, P is a parameter)

and so on for a, b


please correct me if i am wrong

thanks

#5 Help Me ! » compound interest » 2019-04-13 16:44:26

yorkmanz
Replies: 3

hello


please i need help understanding both questions



use the compound interest formula a= p(1+i)^n to answer the following questions:



1:) what type of equation is present if n is constant equal to 1, rather than a variable?


2:) what type of equation is present if i, A, or P are constant rather than  variable?




thanks

#6 Re: Help Me ! » table difference ? » 2019-04-12 10:48:48

ganesh wrote:

Hi,

The Answers A, C, and D are partially correct.

That is,

A) First diff. = 24, 24, 24; Second Diff. = 0 : Linear. Common difference is the same in first difference. Arithmetic Progression.

C) First diff. = 18, 34, 50, 66; second diff. 16, 16, 16 : Common difference in first difference is increasing in Arithmetic Progression : Quadratic.

D) First diff. = -7, -17, -27, -37. -47. Second diff. = 0. Common difference is the same, that is -10, in first difference. Linear.

Regarding B,

The first differences ought to be 3, 27, 243, 2187, 19683.
First difference = 24, 216, 1944, 17496. (Not 17676).
Second diff. = 9, 9, 9 :
The series is Exponential, in first difference.


Thanks much

I am glad i posted the questions i thought i was right!! ...

Thanks for correcting my answers


Regards

Dan

#7 Re: Help Me ! » Interpreting Graphs » 2019-04-06 09:53:49

bob bundy wrote:

hi yorkmanz

Yes, that's right.  Do you need more help with the rest?

Bob


thanks much.
for Question 5 any formula i can use to solve it
thanks

#8 Re: Help Me ! » Interpreting Graphs » 2019-04-05 08:58:49

bob bundy wrote:

hi yorkmanz

Here's what I think.

For section A the temperature is going up (positive).  The line is straight meaning the rate of increase is constant.  Then at 20 minutes there is a sudden change to a steeper line, so the rate is still positive and constant but at a greater value.  At C the temperature isn't changing so the rate of change is zero.  Finally at D the temperature is going down so the rate is now negative.  The curve here isn't straight so the rate is changing.  Heat loss is fastest to start with and then, as the curve levels off, the rate of loss is less and less.

To get the final answer the temperature has increased by 30 degrees C in 20 minutes. The rate of change is measured by dividing the 'up' by the 'across', ie 30/20 and the units are degrees C per minute.

Note:  3) had two letters

Hope that helps,

Bob

For 3) since its going positive i t should be A AND B?

so C IS STOPS

#9 Help Me ! » Interpreting Graphs » 2019-04-04 14:47:43

yorkmanz
Replies: 12

A liquid is heated in lab using hot plate the graph temperature vs time is shown below


https://imgur.com/c6ehBn5


answer using letter A, B, C, D FROM THE ABOVE GRAPH


1) WHERE IS THE RATE OF CHANGE ZERO?

2) WHERE IS THE RATE OF CHANGE CHANGING?

3) WHERE IS THE RATE OF CHANGE POSITIVE?

4) WHERE IS THE RATE OF CHANGE GREATEST?

5) CALCULATE RATE OF CHANGE FOR SECTION A, INCLUDING UNITS?



MY ANSWER FOR

1)  C

2)  B

3)  A

4)  D

5) NOT SURE HOW TO SOLVE


PLEASE CHECK MY ANSWERS AND HELP ME


THANKS

#10 Exercises » HELP: questions could not answer » 2019-02-12 10:34:20

yorkmanz
Replies: 1

questions could not answer?
please explain in details

Thanks much


4.    Find the volume of a cylinder with radius = 4m  and height = 8m  . Round your answer to the nearest m 3   .
       A. 101m 3   
       B. 128m 3   
       C. 201m 3   
       D. 402m 3   


5.    Find the volume of a cylinder with diameter = 21cm  and height = 15cm  . Round your answer to the nearest cm 3.
       A. 315cm 3   
       B. 1654cm 3   
       C. 5195cm 3   
       D. 20,782cm 3

#11 Help Me ! » triangle » 2019-02-06 14:29:26

yorkmanz
Replies: 1

could not solve this on my exam

please help with explanation

Thanks

Find the value of x , which makes the area of this triangle equal 72 .
A. x=10.5
B. x=6
C. x=4.6875
D. x=9.375
triangle

https://imgur.com/a/x5mnSJ5

#12 Help Me ! » parallelogram? » 2019-02-06 12:08:23

yorkmanz
Replies: 1

could not solve this on my exam

please help with explanation

Thanks

What is the area of this parallelogram?

       A. 154 square units 
           B. 123.2 square units 
       C. 80 square units 
       D. 61.6 square units 


parallelogram:
https://imgur.com/a/6JK4gjr

#13 Exercises » help intercepts » 2019-01-12 17:36:20

yorkmanz
Replies: 1

2. Which of the following parabolas opens upward and appears narrower than y=−3x ^2 +2x−1 ?
o A. y= 4x^2 −2x−1
o B. y= − 4x^2 +2x−1
o C. y= x^2 +4x
o D. y= − 2x^ 2 +x+3

Answer:
A

CORRECT OR NOT

3. Which of the following parabolas is 2 units higher than y=2x^ 2 −4x−1 , but has the same shape and opens in the same direction?
o A. y=2x^ 2 −6x−1
o B. y=2x^ 2 −2x−1
o C. y=2x^ 2 −4x−3
o D. y=2x^2 −4x+1

Answer
D

CORRECT OR NOT


4. What are the coordinates of the vertex of the parabola y=x ^2 +2x−1 ?
o A. (−2,5)
o B. (−1,−2) ………
o C. (−2,−1)
o D. (−1,2)

Answer
B

CORRECT OR NOT


5. Which of the following equations has an axis of symmetry with the equation x=1.5 ?
o A. y=2x^ 2 −6x−1
o B. y=2x^ 2 −3x+1
o C. y=x ^2 +6x−3
o D. y=2x^ 2 +3x+2

Answer
A

CORRECT OR NOT

THANKS MUCH

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