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PtichkaEL [24]
3 years ago
15

a picture measuring 2.5 inches high by 6 inches wide is to be enlarged so thst the wodth is now 18 inches. How tall will the pic

ture be?
Mathematics
1 answer:
olga_2 [115]3 years ago
4 0

7.5 inches

the scale factor = \frac{18}{6} = 3

hence height = 3 × 2.5 = 7.5 inches


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When a breeding group of animals is introduced into a restricted area such as a wildlife reserve, the population can be expected
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Answer:

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C. After 15 years, there will be 410 deer.

D. The deer population incresed by 30 specimens.

Step-by-step explanation:

N=\frac{12.36}{0.03+0.55^t}

The amount of deer that were initally in the reserve corresponds to the value of N when t=0

N=\frac{12.36}{0.33+0.55^0}

N=\frac{12.36}{0.03+1} =\frac{12.36}{1.03} = 12

A. Initially, there were 12 deer.

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B. <em>N(10)</em> corresponds to the amount of deer after 10 years since the herd was introducted on the reserve.

C. N(15)=\frac{12.36}{0.03+0.55^15}=\frac{12.36}{0.03 + 0.00013}=\frac{12.36}{0.03013}= 410

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D. The variation on the amount of deer from the 10th year to the 15th year is given by the next expression:

ΔN=N(15)-N(10)

ΔN=410 deer - 380 deer

ΔN= 30 deer.

D. The deer population incresed by 30 specimens.

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