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2 years ago

bryan runs 2 miles every 40 minutes. At this rate, how many minutes did Bryan run if he ran 8 miles?

Mathematics

2 answers:

mars1129 [50]2 years ago

7 0

Answer:

160 minutes.

Step-by-step explanation:

2 miles per 40 minutes for 8 miles

dived 8 by 2 and then multiple by 40

lisov135 [29]2 years ago

6 0

Answer:

160 mins which is also 2 hours and 40 mins

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2 years ago

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Veronika [31]

<u>ANSWER</u>

The zeros are $x=-5,x=0,x=5$

EXPLANATION

Given;

$f(x)=x^4-25x^2$ .

We can rewrite the function as

$f(x)=x^2(x^2-25)$

$\Rightarrow f(x)=x^2(x^2-5^2)$

$\Rightarrow f(x)=x^2(x-5)(x+5)$

The zeros are found by equating the function to zero.

$\Rightarrow x^2(x-5)(x+5)=0$

$\Rightarrow (x-5)=0$

The multiplicity is 1, since it is odd the graph crosses at this intercept. which is $x=5$

$\Rightarrow (x+5)=0$

The multiplicity is 1, since it is odd the graph crosses at this intercept. which is $x=-5$

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This last root has a multiplicity of 2.

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Since the multiplicity is even, the graph touches the x-axis at the point $x=0$ .

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2 years ago

bryan runs 2 miles every 40 minutes. At this rate, how many minutes did Bryan run if he ran 8 miles?​

bryan runs 2 miles every 40 minutes. At this rate, how many minutes did Bryan run if he ran 8 miles?