In △RST, RW=27 cm .
2 answers:
Answer:
18cm
Step-by-step explanation:
A median of a triangle is a line segment from one vertex to the mid point on the opposite side of the triangle.
A centroid of a triangle is defined as the point where the three medians of the triangle meet. It is also called the center of gravity of the triangle.
In the Triangle RST, point X is the centroid where the medians RW, TV and SU intersect.
One Special Property of the centroid is that it divides each median in the ratio 2:1. (with the larger part being the part from the altitude)
Given RW =27
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Answer:
Approximately 22.97 years
Step-by-step explanation:
Use the equation for continuously compounded interest, which uses the exponential base "e":
Where P is the principal (initial amount of the deposit - unknown in our case)
A is the accrued value (value accumulated after interest is compounded), in our case it is not a given value but we know that it triples the original deposit (principal) so we write it as: 3 P (three times the principal)
k is the interest rate : 5% which translates into 0.05
and t is the time in the savings account to triple its value (what we need to find)
The formula becomes:
To solve for "t" we divide both sides of the equation by P (notice it cancels P everywhere), and then to solve for the exponent "t" we use the natural logarithm function: