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densk [106]
3 years ago
15

Jane is a cliff diver and she is planning on jumping from a height of 747 feet and landing in the water below. She will end her

dive 64 feet below sea level. What is the difference in height between her starting and ending points?
Mathematics
2 answers:
nekit [7.7K]3 years ago
8 0

Answer:

811 feet

Step-by-step explanation:

When finding height difference, you use absolute value, so everything is positive. 747+64 = 811, so your answer is 811 feet.

Hope this helps!

Sladkaya [172]3 years ago
6 0

Answer:

811ft

Step-by-step explanation:

Add 747+64 not negative positive

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A survey reveals that the sales of smartphones is increasing considerably. The average annual sales of smartphones, in million u
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Answer:

C. When the survey was initially conducted average sales of smartphones was 1.7 millions units.

Step-by-step explanation:

We have been given that the average annual sales of smartphones, in million units, n years after the survey is conducted is modeled by function p(n)=1.7\cdot b^n, where the parameter b is an unknown positive base.


We are asked to find the true statement about our given function.

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Since we know that b equals (1+r) for growth function, where r is in decimal form.

If b=1.45, it means that the annual growth rate will be 45% as 0.45 is decimal form of 45%, therefore, statement A is not true.

B.  If b= 1.02, annual sales of smartphones will double in 2 years.

If b=1.02, it means that the annual growth rate will be 2% as 0.02 is decimal form of 2%, therefore, statement B is not true.

C. When the survey was initially conducted average sales of smartphones was 1.7 millions units.

Since we know that an exponential function is in form y=a*b^x, where a in initial value of function. We can see from our given function that a equals 1.7, therefore option C is a true statement.

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Since our function is not a linear function, instead it is an exponential function, so rate of change can not be constant.

Therefore, option D is not true regarding our given function.

7 0
3 years ago
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Answer:

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Step-by-step explanation:

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4 0
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Answer:

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Step-by-step explanation:

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