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3 years ago

6

1. A car travels 260 miles in 4 hours. What is the constant of proportionality 1 that relates the number of miles, y, to the num

ber of hours, x?

2 answers:

OLEGan [10]3 years ago

6 0

Answer:

b

Step-by-step explanation:

Zigmanuir [339]3 years ago

3 0

Answer:

it would be 65 miles per hour

Step-by-step explanation:

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2 years ago

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3 years ago

I don't understand this question at all please help if you do

lorasvet [3.4K]

Answer:

Answer is $\frac{4}{3}$

Step-by-step explanation:

To find the interval of x. Use our equations to equal each other.

$-x^2+2x=y,y=0$

$-x^2+2x=0\\-x(x-2)=0\\-x=0 , (x-2)=0\\x=0 ,2$

$\int\limits^2_0 {-x^2+2x} \, dx$

Integrate.

$\frac{-x^3}{3}+x^2\\(\frac{-2^3}{3}+2^2)-[\frac{-0^3}{3}+0^2]\\-\frac{8}{3} +4-0\\-\frac{8}{3}+\frac{12}{3} =4/3$

Using Desmos I have Graphs of both of the equations you have provided. The problem asks us to find the shaded region between those curves/equations.

Proof Check your interval of x.

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2 years ago