: Kenneth measured a hotel and made a scale drawing. The scale he used was 1 inch =4 feet. The actual length of a room in the ho
1 answer:
The room is 5 inches long in the drawing.
Step-by-step explanation:
Given,
Scale drawing used by Kenneth;
1 inch = 4 feet
Ratio of scale = 1:4
Actual length of room = 20 feet
Let,
x be the length in drawing
Ratio of actual length = x:20
Using proportion
Scale ratio :: Actual ratio
Product of mean = Product of extreme
Dividing both sides by 4
The room is 5 inches long in the drawing.
Keywords: ratio, proportion
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The circles B and D are similar since the radius of the former is as twice as the radius of the latter.
<h3>Are the two circles shown in the figure similar?</h3>
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Answer:
<em>The common ratio of the geometric sequence is -4</em>
Step-by-step explanation:
<u>Geometric Sequence</u>
A geometric sequence is defined as a series of numbers that follow a fixed pattern: Each term equals the previous term times a fixed number called the common ratio. The recursive formula is:
Where r is the common ratio.
We are given three terms of a geometric sequence:
18,-72,288,...
To find the common ratio, just divide each term by the previous term:
Make sure it's a fixed number and test with the third term:
Since both numbers coincide, the common ratio of the geometric sequence is -4