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ASHA 777 [7]
3 years ago
10

Can someone help me pls its due today

Mathematics
2 answers:
laila [671]3 years ago
6 0

Answer:

5/2 = 2.5

2/3 = 0.66667

Step-by-step explanation:

13)  From graph

for A  Constant of proportionality is 10/4 = 20/8 = 5/2 = 2.5

for B  Constant of proportionality is 8/12 12/18 = 2/3 = 0.66667

14) for Object C unit rate / Constant of proportionality is

y / x = 7.5/5 = 15/10 = 30/20 = 1.5

unit rate = 1.5

Object C rate is in between A and B 's rate

A > C > B

Grace [21]3 years ago
4 0

Answer:

13)

Line A - slope/constant of proportionality = 5/2

Line B - slope/constant of proportionality = 2/3

14)

unit rate = 3/2 or 1.5

The unit rate, 3/2, is greater than line B's unit rate but is less than line A's unit rate.

Step-by-step explanation:

To find the constant of proportionality for question 13 you use the graph. k = y/x so you find the point at (4, 10) and you go up 10 (y) and over 4 (x). So now you have 10/4 and then you simplify to 5/2. Use the same method for line B to find the slope. Now for question 14 you subtract 10 - 5 to get 5 which is your x and 15- 7.5 to get 7.5 which is the y. So this is now 7.5/5 (y/x) or 3/2. 3/2 is less than 5/2 and greater than 2/3.

Thank you so much!!! Hope this helps!!!

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The teacher asked 4 students to measure 4 different objects. The table shown represents their measurements. Which student had th
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Student 4 has the largest percent error.

Step-by-step explanation:

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p=\frac{|x-x_{true}|}{x_{true}}\cdot 100

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Answer:

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The derivative of the function is \frac{d}{dx}\left(3\left(4x^2+8\right)^5\right)=120x\left(4x^2+8\right)^4.

Step-by-step explanation:

A composite function can be written as g(h(x)), where h and g are basic functions.

For the function f(x)=3(4x^2+8)^5.

The inner function is the part we evaluate first. Frequently, we can identify the correct expression because it will appear within a grouping symbol one or more times in our composed function.

Here, we have 4x^2+8 inside parentheses. So h(x)=4x^2 + 8 is the inner function and the outer function is g(x)=3x^5.

The chain rule says:

\frac{d}{dx}[f(g(x))]=f'(g(x))g'(x)

It tells us how to differentiate composite functions.

The function f(x)=3(4x^2+8)^5 is the composition, g(h(x)), of

     outside function: g(x)=3x^5

     inside function: h(x)=4x^2 + 8

The derivative of this is computed as

\frac{d}{dx}\left(3\left(4x^2+8\right)^5\right)=3\frac{d}{dx}\left(\left(4x^2+8\right)^5\right)\\\\\mathrm{Apply\:the\:chain\:rule}:\quad \frac{df\left(u\right)}{dx}=\frac{df}{du}\cdot \frac{du}{dx}\\f=u^5,\:\:u=\left(4x^2+8\right)\\\\3\frac{d}{du}\left(u^5\right)\frac{d}{dx}\left(4x^2+8\right)\\\\3\cdot \:5\left(4x^2+8\right)^4\cdot \:8x\\\\120x\left(4x^2+8\right)^4

The derivative of the function is \frac{d}{dx}\left(3\left(4x^2+8\right)^5\right)=120x\left(4x^2+8\right)^4.

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