Answer: ad = bc
Step-by-step explanation: A proportion is an equation which states that two ratios are equal. For example, is an example of a proportion.
In the given proportion, <em>a</em> and <em>d</em> are called <u>extremes</u> and <em>b</em> and <em>c</em> are called <u>means</u>.
The first property that I will be talking about states that <u><em>the product of the extremes equals the product of the means</em></u><u>.</u>
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This idea is called the means-extremes property.
So if , we know that <em>a</em> times <em>d</em> equals <em>b</em> times <em>c</em> by the means-extremes property or <em>ad = bc</em>.
So the solution to the proportion is ad = bc.
Answer:
Twenty-one times the quantity of a+8.
The point (4,88) on the graph means that after 4 days, 88 boats will have passed under the bridge. (Third answer choice).
Formula: pi* r^2* h/3
Cone A= 12.57
Cone B= 50.27
Using the exponential growth formula P = Ae^kt, we can solve for the missing values.
Initially, let us solve for the growth factor k, using the values from 1993 and 1999.
In year 1999:
P = 99 million
A = 94 million
t = 1999 - 1993 = 6
Substituting the values into the equation:
99,000,000 = 94,000,000(e^k(6))
k = 8.6375x10^-3
Obtaining the population in 2005 using values from 1999:
P = ?
A = 99,000,000
k = <span>8.6375x10^-3
t = 2005 - 1999 = 6
Substituting the values into the equation:
P = 99,000,000(e^(</span><span>8.6375x10^-3</span>)(6))
P = 104,265,957.4
Approximating to the nearest million, the population in 2005 is 104 million.