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ivolga24 [154]
3 years ago
10

Can you help me with all those problems please

Mathematics
1 answer:
damaskus [11]3 years ago
5 0

18. A

19. A

20a. tbh i dunno

b. mmm

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A 40 yd polygon and 15 yd polygon are similar. find the area of their ratios
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Because we are dealing with area, we have to square the difference of the 2 polygons.40 / 15 = <span> <span> <span> 2.6666666667 </span> </span> </span> <span> <span> <span> 2.6666666667^2 = </span></span></span> <span> <span> <span> 7.1111111111
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Read 2 more answers
49. When a store releases a new cell phone to customers, it expects its sales to decrease by 5% each month after the initial mon
pishuonlain [190]

Answer:

C) f(x)= 682 • 0.95^x

Step-by-step explanation:

The formula for Exponential Decrease is given as:

y = a(1 - r)^x

Where

y = f(x)

a = Initial size of the population = 682

r = Growth rate = 5% = 0.05

x = Time is years

Therefore, our equation can be written as:

f(x) = 682 × (1 - 0.05)^x

f(x) = 682 × (0.95)^x

Therefore, the exponential function that models this situation x months after the initial month is

option C)

f(x) = 682 • 0.95^x

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a boat traveled 280 miles downstream and back. the trip downstream took 7 hours. the trip back took 14 hours. find the speed of
Harman [31]
40 mph on the way, 20 mph on the way back. 
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