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Stella [2.4K]
3 years ago
11

850 1 2 3 842 834 829 Q Zoom 4 5 820 817 y A population of 850 birds decreases by roughly the same p

ercentage
every year. The table shows data values for the size, y, of the population
after x years. A researcher uses technology to fit an exponential
regression model to the data. If she uses her model to predict the size of
the bird population after 20 years, which value will she most likely obtain?
A
B
704
727
D
722
709
Mathematics
1 answer:
larisa86 [58]3 years ago
3 0
What is this I need help to
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Manuel buys 7.9 pounds of strawberries. Each pound costs $3.89. Which expression gives the best estimate of the cost of the stra
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The options you gave are extremely confusing, but if you round 7.9 it is 8, and if you round $3.89 it is $4. Therefore, the best estimate would be 8•$4, or $32
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Use the graph to answer the question. About how many more website hits were there on Tuesday than on Monday? A. 700 B. 400 C. 60
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Find 92% of 120. I'd appreciate it.
Karo-lina-s [1.5K]

Answer:

110.4

Step-by-step explanation:

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Find the distance, in feet, a particle travels in its first 2 seconds of travel, if it moves according to the velocity equation
just olya [345]

Answer:

The particle will travel 6 feet in first 2 seconds.

Step-by-step explanation:

We have been given that a particle moves according to the velocity equation v(t)= 6t^2-18t+12. We are asked to find the distance that the particle will travel in its first 2 seconds.

s(t)=\int |v(t)|dt

s(t)=\int\limits^2_0 |6t^2-18t+12|dt

Now, we will eliminate the absolute value sign as:

s(t)=\int\limits^1_0 6t^2-18t+12dt+\int\limits^2_1 -6t^2+18t-12dt

s(t)=[\frac{6t^3}{3}-\frac{18t^2}{2}+12t]^1_0 +[\frac{-6t^3}{3}+\frac{18t^2}{2}-12t]^2_1

s(t)=[2t^3-9t^2+12t]^1_0 +[-2t^3+9t^2-12t]^2_1

s(2)=2(1)^3-9(1)^2+12(1)-(2(0)^3-9(0)^2+12(0))-2(2)^3+9(2)^2-12(2)-(-2(1)^3+9(1)^2-12(1))

s(2)=2-9+12-(0)-16+36-24-(-2+9-12)

s(2)=5-(0)-4-(-5)

s(2)=5-4+5

s(2)=6

Therefore, the particle will travel 6 feet in first 2 seconds.

   

 

7 0
3 years ago
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Step-by-step explanation:

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