$1689 invested for 4 years at 3% compounded annually ?
1 answer:
The amount gotten after $1689 invested for 4 years at 3% compounded annually is $1901
The amount of money gained after an investment is compounded is given by:
Where P is principal, A is the final amount, r is the rate, n is the number of times compounded per period and t is the time
Given that P = $1689, t = 4, r = 3% = 0.03, n = 1, hence:
The amount gotten after $1689 invested for 4 years at 3% compounded annually is $1901
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Answer:
Base of the mirror is 12 feet and height of the mirror is 18 feet.
Step-by-step explanation:
Given:
Area of the triangular mirror = 108 sq ft.
Let base (b) of the mirror be x.
Now given:
height is 6 feet less than twice the base of the mirror
So we can say that;
Height (h) =
We need to find the base and height of the mirror.
Solution:
Now we know that mirror is in triangular shape so we will apply area of triangle formula to find base and height.
Now Area of triangle is half times base times height.
framing in equation form we get;
Now we will find the roots of x by factorizing the equation we get;
Now we will solve for 2 values of x we get;
Now we get 2 values of 'x' one positive and one negative.
Since x is base of the triangle which cannot be negative.
so we will discard the negative value.
Hence;
base of triangle = 12 ft
Height of the triangle =
Hence Base of the mirror is 12 feet and height of the mirror is 18 feet.