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djyliett [7]
3 years ago
5

The table shows the height of a tree as it grows what equation in slope intercept form gives the trees height at anytime

Mathematics
2 answers:
VLD [36.1K]3 years ago
6 0

Answer:

y=9/2x+5

Step-by-step explanation:

Forgive me if I'm wrong, but this was the only answer that worked on my calculator :|

nasty-shy [4]3 years ago
5 0

Answer:

y=9x ×2

Step-by-step explanation:

I'm sorry if this is wrong

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The average life of individual is 70 years. With a standard deviation of 5.5 years. Assume that the lives of these individuals i
Harlamova29_29 [7]

Answer:

The answer is below

Step-by-step explanation:

Given that:

mean (μ) = 70 years, standard deviation (σ)= 5.5 years.

a) The z score measures how many standard deviation a raw score is above or below the mean. It is given as:

z=\frac{x-\mu}{\sigma}, for a sample size of n, the z score is: z=\frac{x-\mu}{\sigma/\sqrt{n} }

Given a sample of 5 turtles, we have to calculate the z score for x = 60 and x = 80.

For x = 60:

z=\frac{x-\mu}{\sigma/\sqrt{n} }=\frac{60-70}{5.5/\sqrt{5} } =-4.07

For x = 80:

z=\frac{x-\mu}{\sigma/\sqrt{n} }=\frac{80-70}{5.5/\sqrt{5} } =4.07

The probability that a mean life of a random sample of 5 such turtles falls between 60 and 80 years = P(60 < x < 80) = P(-4.07 < z < 4.07) = P(z < 4.07) - P(z < -4.07) = 1 - 0 = 1 = 100%

b) The z score that corresponds to top 10% is -1.28.

z=\frac{x-\mu}{\sigma/\sqrt{n} }\\\\-1.28=\frac{x-70}{5.5/\sqrt{5} }\\ x-70=-3\\x=70-3\\x=67\ years

3 0
3 years ago
Need help pls asap. 40 points
tia_tia [17]

Answer:

8.04

Step-by-step explanation:

Solution 1

x= r- 4.5= 25.2/2 - 4.5= 8.1

Solution 2

x= √(25.2/2)² - 9.7²= √64.67= 8.04

refer to attachment

6 0
3 years ago
AWARDING BRAINLIEST!!! Five classmates came to Dan’s birthday party. This is half as many as the number of his summer camp frien
lozanna [386]

Answer:

20 people. Because 5 already came to the party. 1/3 of his relatives came is 5, so multiply 5 by 3, then add 5. You get 20 people.

Step-by-step explanation:

5 0
3 years ago
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a $ 300 mountain bike is discounted by 30% and then discounted 10% for shoppers who arrive before 5:00am
eimsori [14]
The mountain bike cost $189 after both discounts

6 0
3 years ago
A rectangular lot that measures 150 ft by 200 ft is completely fenced. What is the approximate length, in feet, of the fence?
Ivenika [448]
300,000 because you have to just multiply 150 by 200
3 0
3 years ago
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