1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
geniusboy [140]
3 years ago
14

1. What is the formula for compound interest?

Mathematics
1 answer:
Rus_ich [418]3 years ago
3 0

Answer:

  1.   CI = P (1 + \frac{r}{100} )^ n - P

        CI = A - P

      Where P is Principal

      R is interest rate

      n is number of years

   2. a. Semi annually - four times in a year

       b. Monthly           -  two times in a year

       c.  annually          -  once in a year

Step-by-step explanation:

1.  Money is said to be lent at compound interest , when the interest has become due at certain fixed period say, one year, half year, etc.., is given not paid to money lender, but is added to sum lent . The amount thus obtained become principal for next month and this process repeat until last period .

i.e CI = Final period - Initial period

or CI = A - P

or CI = P(1+ \frac{r}{100}) ^n - P

2. (a) Semi annually

        A = P (1 + \frac{r}{4 * 100} )^ n × 4

   (b)  Monthly

       A = P (1 + \frac{r}{2 * 100} ) ^ n × 2

   

   (c)  Annually

       A = P (1 + \frac{r}{100} ) ^ n

You might be interested in
Which of the quadratic functions has the narrowest graph? y = –2x2 y=-1/2x^2 y = –4x2 y=1/7x^2
vovikov84 [41]
Look at the coefficient of x², ignore the positive or negative sign. The larger the coefficient, the narrower the graph. 
in this case, the coefficients are -2, -1/2, -4, and 1/7
ignore the positive or negative sign, 4 is the largest number, so y=-4x² is the narrowest.

Note: the positive/negative sign tells you whether the graph opens upward or downward. It doesn't determine the width of the graph. 

5 0
3 years ago
 Given that 310 = 59 049 , what is 3-10 expressed as an exact value?
Advocard [28]
x^{-n}=\frac{1}{x^n} \\ \\
3^{10}=59049 \\
3^{-10}=\frac{1}{3^{10}}=\frac{1}{59049} \\ \\
\boxed{3^{-10}=\frac{1}{59049}}
4 0
2 years ago
What is the approximate area of a circle with a radius of 30
amid [387]

Answer:

Step-by-step explanation:

Area of circle = π r²

r = 30

30² = 900

π = 3.14  or ≈ 3

A ≈ 900 × 3

A ≈ 2700

so C at 2830 is closest to the answer

8 0
2 years ago
Need brief explanation about why D is the answer.
IrinaVladis [17]

Answer:  Push factors encourage people to leave their points of origin and settle elsewhere, while pull factors attract migrants to new areas. For example, high unemployment is a common push factor, while an abundance of jobs is an effective pull factor.

Step-by-step explanation:

6 0
3 years ago
4p+25=6(p-3)-3(4-3p)
Wewaii [24]
P = 5 .............................................
this is how= 

first you expand the second equation 
<span>25 + 4p = -18 + -12 + 6p + 9p
</span>
then you add the like terms in the second equation:
25 + 4p = -30 + 15p
then this is how=
25+30 = 15p -4p
55=11p

p= 5

3 0
3 years ago
Other questions:
  • Eva sees a dolphin 3.23.23, point, 2 meters below sea level and a bird \dfrac{47}{10} 10 47 ​ start fraction, 47, divided by, 10
    10·2 answers
  • What mathematical operation do you use to solve to waist to hip ratio
    11·1 answer
  • Helppppppppppppppppppppppppppp
    11·1 answer
  • Barbara sells iced tea for a $1.49 per bottle and water for $1.25 per bottle. She wrote a equation to find the number of drinks
    11·2 answers
  • Which of the following fractions is equivalent to the repeating decimal 0.55555555555...?
    9·2 answers
  • Find the x-intercept of a line whose equation is 8x+2y=4.
    9·1 answer
  • You get 50 points if yu answer the question and the firdt to get it right gets top!!
    13·2 answers
  • Please pass this on... ( #helpsavelives )
    11·2 answers
  • La diferencia comun es?
    11·1 answer
  • Helps fast plzzzzzzzzz
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!