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scZoUnD [109]
3 years ago
15

the number y of calories burned after x hours of rock climbing is represented by the linear function y=650x find the domain , is

the domain descents or continuous? explain
Mathematics
1 answer:
Flauer [41]3 years ago
3 0

Answer:

The domain is discrete

Step-by-step explanation:

Given

y = 650x

Required

What type of domain is it?

<em>Based on the given options, the domain is continuous.</em>

From the question, we understand that x represents the hours spent in climbing the rock.

The climber can decide to climb for 1 hour, 2 hours, ½ hour, ⅓ hour, ¼ hour, etc..

A domain is said to be discrete if it can only take integers (i.e. whole numbers), if otherwise, it is continuous;

So, since x is not limited to only whole numbers, then we can conclude that the domain of x is continuous

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<u>Given</u>:

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We need to determine the relationship that represents the measure of ∠X and ∠Y

<u>Option a</u>: m∠X = m∠Y

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Since, we know that the given relationship between X and Y is a straight line, the relationship  m∠X = m∠Y does not represent the relationship between X and Y.

Hence, Option a is not the correct answer.

<u>Option b</u>: m∠X + m∠Y = 90°

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Hence, Option b is not the correct answer.

<u>Option c</u>: m∠X + m∠Y = 100°

The given relationship shows that the sum of the two angles X and Y is 100°

Hence, the relationship m∠X + m∠Y = 90° does not represent that the angles X and Y forms a straight line.

Hence, Option c is not the correct answer.

<u>Option d</u>: m∠X + m∠Y = 180°

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Since we were given m and n, we plug them into the expression and solve.

-2(-6)+4(-5)²            [exponent]

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12+100                     [add]

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Now, we know that the value of the expression is 112.

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