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stepladder [879]
2 years ago
15

Can someone help me with this question please :) I’ll mark as brainliest.

Mathematics
1 answer:
zavuch27 [327]2 years ago
6 0

\sqrt{84}

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The equation below can be used to find the length of a foot or forearm when you know one or the other. (length of the foot) = 0.
3241004551 [841]
This is child's play. 

So, basically:
Y=Length of foot
X= Length of your forearm. 
This is simple. Your equation is Y=0.860x + 3.302
So, if you have a forearm (x) that is 17 inches long, then plug in x as 17. This leaves you to evaluate for Y.
New equation: Y=0.860(17) +3.302
Work it out, you get: Y=14.62 + 3.302
Work that out, you get: Y= 17.922 inches long. 
And of course, Y is the foot.

So, your answer: If the forearm is 17 inches long, then the foot is 17.922 inches long. Simple.

So, part 2:
Rate of change. Well, you need slope then, because that's the same thing.
Y=mx+b, Where m=slope
Your answer turns to be 0.860 inches per length of arm, for rate of change.

Skipping the data, as that's only something you'd know.

Yes, it is indeed a function. There can't be any exponents greater than 1 on the placeholder, and it's obviously not a straight line if you plug it in. 

So yeah, it's a function.

~Hope this helps m8







5 0
2 years ago
Read 2 more answers
The length of a rectangle is 7 inches less than twice the width, w, of the rectangle.
Ivan

Answer:

Step-by-step explanation:

Let w represent the width of the rectangle.

The length of a rectangle is 7 inches less than twice the width, w, of the rectangle. It means that the length is (2w - 7) inches

Part A

The function that gives the area as a function of the width is

A(w) = w(2w - 7)

Part B:

If the area of the rectangle is 60 square inches, it means that

w(2w - 7) = 60

2w² - 7w = 60

2w² - 7w - 60 = 0

2w² + 8w - 15w - 60 = 0

2w(w + 4) - 15(w + 4) = 0

2w - 15 = 0 or w + 4 = 0

w = 15/2 or w = - 4

Since w cannot be negative, then

w = 15/2 = 7.5 inches

4 0
2 years ago
0 15 - (-13)<br> How do I get the correct question
stepan [7]
I just know the answer is 28
5 0
3 years ago
Can I get some up please?
qwelly [4]
The answer is a it cant be anything else
5 0
3 years ago
Write the function whose graph is the graph of y=l x l but is shifted up 9 units.
Olenka [21]

The function is y = IxI + 9

Step-by-step explanation:

Let us revise the translation of a function

  • If the function f(x) translated horizontally to the right by h units, then its image is g(x) = f(x - h)  
  • If the function f(x) translated horizontally to the left by h units, then its image is g(x) = f(x + h)  
  • If the function f(x) translated vertically up by k units, then its image is g(x) = f(x) + k  
  • If the function f(x) translated vertically down by k units, then its image is g(x) = f(x) - k  

∵ y = IxI

∵ The graph of the function is shifted 9 units up

- That means the graph of the function is translated 9 units, up

∵ The equation of the function f(x) whose graph shifted k units

   up is f(x) + k

∵ k = 9

∴ The equation of the function is y = IxI + 9

The function is y = IxI + 9

Look to the attached figure for more understand

Learn more:

You can learn more about the translation in brainly.com/question/2451812

#LearnwithBrainly

8 0
3 years ago
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