3 years ago

Explain the difference between simple interest and compound interest.

1 answer:

8 0

Simple interest:

Simple interest is simple. Each year, the interest is calculated as a percentage of the principal, as follows: Interest= (principal) x (rate) x (time).

Compound interest:

Compound interest is calculated on the principal amount and also on the accumulated interest of previous periods.

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A rock is thrown from the top of a tall building.The distance in feet between the rock and the ground t seconds after thrown is

marusya05 [52]

Answer:

0.448 seconds

Step-by-step explanation:

d = -16t² -4t + 412

find t when d = 407

substituting d = 407 into the equation:

407 = -16t² -4t + 412 (subtract 407 from both sides)

-16t² -4t + 412 - 407 = 0

-16t² -4t + 5 = 0 (multiply both sides by -1)

16t² + 4t - 5 = 0

solving using your method of choice (i.e completing the square or using the quadratic equation), you will end up with

t = (-1/8) (1 + √21)= -0.70 seconds (not possible because time cannot be negative)

t = (-1/8) (1 -√21) = 0.448 seconds (answer)

4 0

3 years ago

can yall help me pls? thanks just pls tell me the right coordinates on this graph pls if u will :) <3

skelet666 [1.2K]

Answer:

a- (3,4)

b- (0,-4)

c- (-6,2)

d- (0,5)

e- (-4,-5)

Step-by-step explanation:

hope this helps

4 0

3 years ago

Use a unit multiplier to convert $15.00 per hour to dollars per minute. Show your work.

torisob [31]

$15/1 hour= $15/60 minutes= $0.25/1 minute (did this by diving 15 by 60)

3 0

2 years ago

Multiply. (−7.3)(−0.08) Enter your answer in the box.

BARSIC [14]

Answer:

$0.584$

Step-by-step explanation:

A negative number times a negative number is a positive.

Hope this helps you!

$GraceRosalia$ is here to help

7 0

3 years ago

Read 2 more answers

Consider the function f(x) = 49.5(0.82).

slavikrds [6]

Answer:

1. Exponential decay

2. 18%

Step-by-step explanation:

3 0

3 years ago