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
saul85 [17]
2 years ago
5

At a 5 % annual interest rate, a principal of $2,000 earns $ 400. How long was the principal invested?

Mathematics
1 answer:
prohojiy [21]2 years ago
5 0

Answer:

The final balance is $4,926.8.

The total compound interest is $3,926.8.

Step-by-step explanation:

dont need one

You might be interested in
Anwser the following question with explanation
shepuryov [24]

Answer:

you need to devide the 2 numbers well the 2 fractions bc there mixd numbers well bye it was my pluesure to help you

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
6x – 3y = 5<br>y – 2x= 8​
noname [10]

Answer:

PA GEN SOLISYON --> "NO SOLUTION"

Step-by-step explanation:

Whether you multiply the top equation by ⅓ to make "-y" and "2x", or multiply the bottom equation by 3 to make "3y" and "-6x", you will see that 9⅓ ≠ 0, or 24 ≠ 0, therefore the result is "NO SOLUTION".

6 0
3 years ago
Which expression represents the number 2i4−5i3+3i2+−81‾‾‾‾√ rewritten in a+bi form?
vichka [17]

Answer:

The expression -1+14i represents  the number 2i^4-5i^3+3i^2+\sqrt{-81} rewritten in a+bi form.

Step-by-step explanation:

The value of i is i=\sqrt{-1}[tex] or [tex]i^{2}=-1[\tex].Now [tex]i^{4} in term of i^{2}[\tex] can be written as, [tex]i^{4}=i^{2}\times i^{2}

Substituting the value,

i^{4}=\left(-1\right)\times \left(-1\right)

Product of two negative numbers is always positive.

\therefore i^{4}=1

Now i^{3} in term of i^{2}[\tex] can be written as, [tex]i^{3}=i^{2}\times i

Substituting the value,

i^{3}=\left(-1\right)\times i

Product of one negative  and one positive numbers is always negative.

\therefore i^{3}=-i

Now \sqrt{-81} can be written as follows,

\sqrt{-81}=\sqrt{\left(81\right)\times\left(-1\right)}

Applying radical multiplication rule,

\sqrt{ab}={\sqrt{a}}\sqrt{b}

\sqrt{\left(81\right)\times\left(-1\right)}={\sqrt{81}}\sqrt{-1}

Now, \sqrt{\left(81\right)=9 and \sqrt{-1}}=i

\therefore \sqrt{\left(81\right)\times\left(-1\right)}=9i

Now substituting the above values in given expression,

2i^4-5i^3+3i^2+\sqrt{-81}=2\left(1\right)-5\left(-i\right)+3\left(-1\right)+9i

Simplifying,

2+5i-3+9i

Collecting similar terms,

2-3+5i+9i

Combining similar terms,

-1+14i

The above expression is in the form of a+bi which is the required expression.

Hence, option number 4 is correct.

5 0
3 years ago
What whole numbers does the square root of 39 lie between
Oksi-84 [34.3K]
The square root of 39 is 6.245. It lies between the whole numbers 7and 8!
6 0
3 years ago
HIGHSCHOOL ALGEBRA!!!!! PLS HELP :) <br> Find the root of the equation: (6x–1)(6x+1) - 4x(9x+2) = −1
My name is Ann [436]

(6x–1)(6x+1) - 4x(9x+2) = −1

Simplify the left side:

36x^2-1 -36x^2-8x = -1

Combine like terms:

-1 -8x = -1

Add 1 to both sides:

-8x = 0

Divide both sides by -8:

x = 0 / -8

x = 0

The root is 0

5 0
3 years ago
Other questions:
  • Simplify the following expressions ( use distributed property )
    10·1 answer
  • What information can be used to compare linear<br> relationships? Explain why.
    10·2 answers
  • Candice plotted the points (2, 15) and (0, -1) and then drew a line through these two points. What is the slope of the line she
    14·1 answer
  • What decimal is equivalent to 9/100
    8·2 answers
  • Find the x-intercepts/roots of the polynomial function. Also, identify the degree of the polynomial
    5·1 answer
  • PLEASE HELP ME ASAP!
    5·1 answer
  • Weekly wages at a certain factory are
    5·2 answers
  • GIVING BRAINLIEST ONLY IF CORRECT
    6·2 answers
  • Write an equation in POINT-SLOPE FORM of the line that has a slope of -3/5 and passes through the point (2, 1). harrryyy this is
    13·1 answer
  • The graph of r = -3 + 5cos theta is symmetric about the __________.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!