A sociologist has found that the number of serious crimes in a certain city each year is described by the function 
where x (in cents/dollar deposited) is the level of reinvestment in the area in conventional mortgages by the city's ten largest banks. Use differentials to estimate the change in the number of crimes if the level of reinvestment changes from 21![]()
src="https://sciemce.com/media/3/ppg__cognero__3.7_Differentials__media__307e533a-5161-4904-9f41-92f1713b8891.PNG" style="vertical-align: middle;" />/dollar deposited to 25
/dollar deposited. Round to the nearest integer.
?
Decrease of __________ crimes/yr.
Fill in the blank(s) with the appropriate word(s).
Answer: 5
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For the given rectangular equation, write an equivalent polar equation.7x - 2y - 9 = 0
A. r = 
B. r2 = 
C. r = 
D. r = 
Solve the problem. Round your answer to the nearest tenth of a percent, if necessary.What percent of 177 is 10.7?
A. 6.0% B. 0.2% C. 1,654.2% D. 0.1%
Add or subtract as indicated. Write the answer in simplest form.5 - 
A. 
B. 
C. 
D. 
Factor completely. If the polynomial is prime, say so.3k3 - 24
A. 3(x + 2)(x2 - 2x + 4) B. 3(x - 2)(x2 + 4) C. (3x - 2)(x2 + 2 + 12) D. 3(x - 2)(x2 + 2x + 4)