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Ilia_Sergeevich [38]
3 years ago
7

Indira is climbing and starts at 182.5 meters above sea level each hour she descends 36.5 meters the table shows the function re

lating in inDara‘s height to the number of hours she mountain climbing
Mathematics
1 answer:
VLD [36.1K]3 years ago
5 0

The function relating in indira‘s height to the number of hours she mountain climbing is: y = -36.5x + 182.5

A linear equation is given by:

y = mx + b;

where m is the slope(rate of change), b is the initial value of y, y is the dependent variable and x is the independent variable.

Let x represent the number of hours spent climbing the mountain and y represent the distance above see level.

She starts at 182.5 meters above sea level, hence; b = 182.5 meters

She descends 36.5 meters each hour, hence m = -36.5 meter per hour

Therefore the equation becomes:

y = -36.5x + 182.5

Find out more at: brainly.com/question/19586594

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In a study, 43% of adults questioned reported that their health was excellent. A researcher wishes to study the health of people
marishachu [46]

Answer:

13.44% probabilith that at most 3 are in excellent health.

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they are in excellent health, or they are not. The probability of an adult being in excellent health is independent of other adults. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

43% of adults questioned reported that their health was excellent.

This means that p = 0.43

13 adults randomly selected

This means that n = 13

Find the probability that when 13 adults are randomly selected, at most 3 are in excellent health.

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

In which:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{13,0}.(0.42)^{0}.(0.58)^{13} = 0.0008

P(X = 1) = C_{13,1}.(0.42)^{1}.(0.58)^{12} = 0.0079

P(X = 2) = C_{13,2}.(0.42)^{2}.(0.58)^{11} = 0.0344

P(X = 3) = C_{13,3}.(0.42)^{3}.(0.58)^{10} = 0.0913

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0008 + 0.0079 + 0.0344 + 0.0913 = 0.1344

13.44% probabilith that at most 3 are in excellent health.

6 0
3 years ago
What is 6/3 divided by 2/4
Juli2301 [7.4K]

Answer:6/3÷2/4=4

Step-by-step explanation: i hope its the rght

answer

8 0
4 years ago
Is questions 1,4,5,6 correct? If not how do I do them? And how do I do question 2?
My name is Ann [436]
Yes your answers 1 and 4-6 are correct. great job!

1 for question 6 we need to distribute the -3 (our outside value) to our values inside our parentheses by multiplication

-3 x 2x = -6x
-3 x -5 = 15

new equation: 8x + 1 - 6x + 15

2. now combine like terms

8x - 6x = 2x
1 + 15 = 16

so our new equation with combined like terms is: 2x + 16








6 0
3 years ago
The defference of twenty-two and six divided by the sum of five and three is equal to
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Answer:

(22-6):(5+3) = 2

Step-by-step explanation:

5 0
3 years ago
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The surface area for a rectangular prism with a square base is SA=2s2+4sh . What is the surface area if s=3 and h=5 ?
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so you subtitute and get SA=2(2)2+4(2)(4) and get SA=8+32=40

actually the surface area is 2(s^2)+4sh and if you subitute you get the same thing

7 0
3 years ago
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