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Kamila [148]
3 years ago
14

A factory makes rods by cutting platic pipes that are 5 feet long into 8 rods. How long is each rod

Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0
If you divide 8 by 5 you should get 1.6
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8 wholes and 4/6 minus 2 wholes and 5/6 is what
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The answer to your problem should be 5 wholes and 5/6 since the denominators are the same just add 6 more pieces to 4/6 to get an improper fraction then subtract to get the answer. Hope this helps and have a fabulous day!
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No one is helping me please help!
geniusboy [140]
Watch anime and screw work
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Which expressions are equivalent to 9+h+ (j+k)? Check all that apply.
GaryK [48]

Answer:3

the 3rd one

5 0
2 years ago
I need help really fast!!!
Helga [31]

Answer:

x=4

if that is what you need hope this helped

Step-by-step explanation:

6 0
2 years ago
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EXPLAIN why we placed the value of x= 4/3( the minimum value) into the equ of gradient(dy/dx) [in the answer, marking scheme att
aliina [53]
y=x(x-2)^2
\implies y'=(x-2)^2+2x(x-2)=3x^2-8x+4=(3x-2)(x-2)=0
\implies x=\dfrac23,x=2

are the critical points, and judging by the picture alone, you must have b=\dfrac23 and a=2. (You might want to verify with the derivative test in case that's expected.)

Then the shaded region has area

\displaystyle\int_0^2x(x-2)^2\,\mathrm dx=\dfrac43

I'll leave the details to you.

Now, for part (iv), you're asked to find the minimum of \dfrac{\mathrm dy}{\mathrm dx}=y', which entails first finding the second derivative:

y'=3x^2-8x+4
\implies y''=6x-8

setting equal to 0 and finding the critical point:

6x-8=0\implies x=\dfrac86=\dfrac43

This is to say the minimum value of \dfrac{\mathrm dy}{\mathrm dx} *occurs when x=\dfrac43*, but this is not necessarily the same as saying that \dfrac43 is the actual minimum value.

The minimum value of \dfrac{\mathrm dy}{\mathrm dx} is obtained by evaluating the derivative at this critical point:

m=\dfrac{\mathrm dy}{\mathrm dx}\bigg|_{x=4/3}=3\left(\dfrac43\right)^2-8\left(\dfrac43\right)+4=-\dfrac43
4 0
3 years ago
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