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Answer: Choice B</h3>
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Explanation:
The rule we use is
where 'a' is the base, m stays in the role of the exponent, and n plays the role of the root index (eg: n = 3 is a cube root, n = 4 is a fourth root, and so on).
So for instance,
or in this case,
Answer: There are 7,677 streets named as " First Street" and 7, 189 streets named as "Main Street" .
Step-by-step explanation:
Let x be the number of streets named as First Street .
y be the number of streets named as Main Street.
AS per the given information, we have the following system of equations :
Substitute the value of x from (2) in (1) , we get
Put value of y in (2), we get
Hence , there are 7,677 streets named as " First Street" and 7, 189 streets named as "Main Street" .
(2x+1)(x-2) = 2x^2 - 4x +x -2= 2x^2-3x-2
Use the formula 1/2(base1+base2)height. Substitute the values.
F(3k)=3k +7 Equals 9k+7. So 9k+7 would be the Answer.