In a stairway, the slope of the handrail is the ratio of the riser to the tread. If the tread is 12 inches long and the riser is
8 inches long, find the slope.
(image)
a.
2/5
c.
2/3
b.
3/2
d.
5/2
(image)
a.
2/5
c.
2/3
b.
3/2
d.
5/2
1 answer:
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Answer:
The answer is option A
Step-by-step explanation:
<h3>Using the rules of indices
That's
<h3>Simplify the expression
We have
<h3>Again using the rules of indices
That's
<h3>The final answer is
<h3>Hope this helps you
Answer:
Step-by-step explanation:
Geometric sequence
Each term in a geometric sequence can be computed as the previous term by a constant number called the common ratio. The formula to get the term n is
where is the first term of the sequence
The problem describes Georgie took 275 mg of the medicine for her cold in the first hour and that in each subsequent hour, the amount of medicine in her body is 91% (0.91) of the amount from the previous hour. It can be written as
amount in hour n = amount in hour n-1 * 0.91
a)
This information provides the necessary data to write the general term as
b)
In the 8th hour (n=8), the remaining medicine present is Georgie's body is