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Rama09 [41]
3 years ago
9

The heights of the pine trees in a certain forest are normally distributed, with a mean of 86 feet and a standard deviation of 8

feet.
Approximately what percentage of the pine trees in this forest are taller than 100 feet?

Mathematics
2 answers:
kifflom [539]3 years ago
8 0

Answer:

4%

Step-by-step explanation:

PLATO users

Irina-Kira [14]3 years ago
3 0

Answer: 0.95994

Step-by-step explanation:

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What are the domain and range of the function below?<br> !!!!!!
Diano4ka-milaya [45]

Answer:

we need to see the whole graph to determine the domain and range please

Step-by-step explanation:

8 0
3 years ago
A two digit number is written at random what is the probability that the number will be odd
leonid [27]

Answer:

50%

Step-by-step explanation:

So there are 90 2 digit numbers. There are 45 2 digit odd numbers.

The probability should be 50%

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3 years ago
A zoo is open 5 days a week. For one week, zoo attendance per day was 113,185,140,219, and 295. What was the mean number of peop
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The answer is 164.25.

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Help!!!!!!!!!!!!!!!!!!!!!!
zhuklara [117]

Answer:

see below

Step-by-step explanation:

9 ^-5 * 9^-3

When multiplying these we ADD the exponents:

9^-5 * 9^-3

= 9^(-5 + -3)

= 9 ^-8

= 1/9^8  Option A


2.    2^14 / 2^7   This is a division so we SUBTRACT the exponents:-

= 2^(14 - 7)  

= 2^7   (answer)

3.    If the triangle is a right angled one then it will obey Pythagoras Theorem so:-

13^ = x^2 + 5&2

x^2 = 13^2 - 5^2

x^2 = 144

x = 12    (answer)


4.   The last choice is a crucial step.

The total area of the triangles is the same in both large squares so  the area of the large  square e^2 = a^2 + b^2 ( the 2 squares in the left side large square).

5 0
3 years ago
From midnight to 2:00 am, the temperature rose 1.15°C each hour. If the temperature at 2:00 am was -2.7°C, what was the temperat
malfutka [58]

Answer: -5 degrees Celsius

Step-by-step explanation:

Temp at 2:00am = -2.7

2:00am is two hours after midnight

During that time the temperature has risen by 1.15 degrees every hour so has risen in total by:

1.15x2 = 2.3 degrees

-2.7-2.3=-5

It was -5 degrees at midnight

3 0
2 years ago
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